CN205211520U

CN205211520U - Frock is made to high accuracy magnetism encoder magnetic ring

Info

Publication number: CN205211520U
Application number: CN201520914888.XU
Authority: CN
Inventors: 彭林; 舒克茂
Original assignee: SHENZHEN MAGENT LABORATORIES Co Ltd
Current assignee: SHENZHEN MAGENT LABORATORIES Co Ltd
Priority date: 2015-11-17
Filing date: 2015-11-17
Publication date: 2016-05-04
Anticipated expiration: 2025-11-17

Abstract

The utility model discloses a frock is made to high accuracy magnetism encoder magnetic ring for the manufacturing of magnetism encoder magnetic ring, it is including being located the coil of below on the magnetic ring, many -stage such mode of magnetizing can improve the precision of magnetic ring to filling the coil in order to have for two coils, can let the no magnetic domain of magnetic ring between based on the level thinner, improves the number of poles of magnetic ring, has also improved the resolution ratio of magnetism encoder exactly, can also improve the degree of consistency between every utmost point.

Description

A kind of high accuracy magnetic coder magnet ring fabricating tools

Technical field

The utility model relates to the manufacture of magnetic coder magnet ring, particularly relates to a kind of high accuracy magnetic coder magnet ring fabricating tools.

Background technology

Encoder be signal (as bit stream) or data are carried out work out, being converted to can in order to the equipment of the signal form of communication, transmission and storage.Encoder is divided into photoelectric encoder and magnetic coder; The protection requirement that optical encoder is accurate but higher to use proposition under outdoor and adverse circumstances; Measure straight-line displacement and need rely on mechanical device conversion, the error that mechanical clearance is brought need be eliminated; Detect orbital motion object to be difficult to overcome slippage.

So people select magnetic coder usually in the presence of a harsh environment, magnetic coder is easily installed, and eliminates shaft coupling, and antijamming capability is strong, is not afraid of vibrations, shortcoming be current technology can't resolution do very high.

Summary of the invention

The main technical problems to be solved in the utility model is, provide a kind of high accuracy magnetic coder magnet ring frock, it effectively can improve the resolution of magnetic coder.

For solving the problems of the technologies described above, the utility model provides a kind of high accuracy magnetic coder magnet ring fabricating tools, comprise the magnet ring location-plate for locating magnet ring, also comprise to be positioned at directly over described magnet ring location-plate and immediately below upper coil and lower coil, described upper coil and lower coil be have multipole to filling coil.

Described upper coil and lower coil accuracy tolerance scope are less than ± 0.01mm, and in the coil of coiling, the length of every single line is consistent with curved radian.

Described upper coil and lower coil are equipped with corresponding conducting magnet core, upper coil and lower coil are the enamelled wire structure of multiple wire casing, the enamelled wire of upper coil and lower coil and the distance on conducting magnet core surface at about 0.05mm, the distance on the line in each wire casing and conducting magnet core surface consistent.

Fixed by electron pouring sealant between described enamelled wire and conducting magnet core.

Upper coil and lower coil surface are through fine grinding process, and flatness is at positive and negative 0.01mm.

Corresponding described upper coil and lower coil are also provided with cooling system.

The magnet ring density of corresponding processing is homogeneous, and surperficial degree accuracy tolerance scope is less than ± 0.1mm.

Described frock adopts the power supply that magnetizes filling multistage magnet ring specially.

The described power supply that magnetizes filling multistage magnet ring specially, its electric capacity and output have employed the wiring construction of low inductance low resistance.

The beneficial effects of the utility model are: a kind of high accuracy magnetic coder magnet ring fabricating tools, comprise the coil being positioned at described magnet ring upper and lower, described two coils be have multipole to filling coil, the mode of magnetizing like this can improve the precision of magnet ring, can allow thinner without magnetic region based between level of magnet ring, improve the number of poles of magnet ring, namely improve the resolution of magnetic coder; The uniformity between each pole can also be improved.

Accompanying drawing explanation

Fig. 1 is the structural representation of a kind of embodiment of the utility model frock;

Fig. 2 is the frock Inside coil of the utility model shown in Fig. 1 and core structure schematic diagram;

Fig. 3 is the using state schematic diagram that the utility model frock magnetizes to magnet ring;

Fig. 4 is ends of the earth magnet ring and magnetic field structure schematic diagram thereof.

Embodiment

By reference to the accompanying drawings the utility model is described in further detail below by embodiment.

A kind of high accuracy magnetic coder magnet ring fabricating tools that the utility model provides, this frock can be called magnet charger, includes magnetizing coil.

As shown in Figures 1 to 4, a kind of high accuracy magnetic coder magnet ring fabricating tools, cope match-plate pattern 7 and the lower bolster 6 of guide-localization effect are included, be matched with the magnet ring location-plate 3 for locating magnet ring at cope match-plate pattern 7 and lower bolster 6 composition surface place, be separately positioned in cope match-plate pattern 7 and lower bolster 6 and be positioned at upper coil 1 above and below described magnet ring location-plate 3 and lower coil 2, upper coil 1 and lower coil 2 are formed up and down to filling coil.

In correspondence, coil 1 and lower coil 2 are also respectively arranged with the conducting magnet core 5 for magnetizing to magnet ring, and conducting magnet core 5 conducts the magnetic that upper coil 1/ lower coil 2 produces.

Described cope match-plate pattern 7 and lower bolster 6 are provided with the water-cooling system of the upper coil 1 of corresponding cooling and lower coil 2.For cooling magnetizing coil (upper coil 1/ lower coil 2), the required big current that magnetizes can produce heat, and cooling in time can extend the magnetizing coil life-span.

Water cooling system structure can refer to prior art, includes cooling water connector 4, interface docking cooling-water machine.

When designing coil (upper coil 1 and lower coil 2), consider very many-sided factor, the precision of each workpiece must note the margin of tolerance (positive and negative 0.01mm), ensures the precision of the part processed, after bringing back workpiece, this step is more difficult, be exactly when coiling, the length of every single line and curved radian need to ensure consistency, after wire casing put into by enamelled wire, the distance controlling on enamelled wire and conducting magnet core 5 surface is at about 0.05mm, ensure the consistent of the distance on the line in each wire casing and conducting magnet core 5 surface, pour electron pouring sealant into electric wire to being fixed up after completing at once, again the coil machining factory that takes away is removed refining surfaces after treating electron pouring sealant solidification, need with micrometer in coil surface measurement flatness after having ground, flatness is at positive and negative 0.01mm, can assembling test after completing, under filling saturated condition to magnet ring, this coil can normally work, and just can magnetize to magnet ring,

The table magnetic of this magnet ring measured by magnet ring Distribution of Magnetic Field measuring instrument of taking away after charging magnetic, and the peak value of each magnetic pole of magnet ring is out of question in the margin of tolerance, and so high-precision encoder magnet ring just completes.

The magnet ring density of the processing that this frock is corresponding is homogeneous, and surperficial degree accuracy tolerance scope is less than ± 0.1mm.

The utility model provides a kind of high accuracy magnetic coder magnet ring fabricating tools, in the fabrication process, chooses (employing) density homogeneous, the magnet ring that surperficial degree precision is high; Adopt the power supply that magnetizes filling multistage magnet ring specially; Multipole is high-precision up and down to filling coil .

Concrete, for the power supply that magnetizes filling multistage magnet ring specially; The power supply that this magnetize power supply and prior art use is distinguished and is: the energy storage capacitor that have employed low ESR and low equivalent series inductance, electric capacity and output have employed the wiring construction of low inductance low resistance.While considering and meeting High-Voltage Insulation intensity, as far as possible can shortening wiring distance.Thus realize low inductance, the electric source structure of low resistance effect.

High-precision up and down to filling coil for multipole, with reference to ends of the earth magnet ring shown in Fig. 4, the South Pole and the arctic in its magnetic field are spaced apart; Therefore multipole refers to produce South Pole in magnetic field and arctic magnetizing coil spaced apart to filling coil.

Concrete, can cool magnetizing coil in the process of magnetizing; Liquidate the heat that required big current can produce that magnetizes, to improve the magnetizing coil life-span.

Corresponding can be arrange a cooling-water machine.

Concrete, the rear Distribution of Magnetic Field to magnet ring that magnetized is measured.Manufacture good after to carry out having a fling at assessment, qualified just have corresponding shipment report.

Corresponding can be arrange a high accuracy Distribution of Magnetic Field measuring instrument.

The manufacture method in the past manufacturing magnetic coder magnet ring only magnetizes to magnet ring surface row with a coil; Herein magnetize to magnet ring with upper and lower two coils in scheme basis.The method can improve the manufacture encoder magnet ring precision that magnetizes, thus the resolution of magnetic coder can be done very high.

Concrete, it is high-precision up and down to filling coil that frock used includes multipole; In coil, the length of every single line is consistent with curved radian; The distance controlling on enamelled wire and conducting magnet core surface at about 0.05mm, the distance on the line in each wire casing and conducting magnet core surface consistent; Fixed by electron pouring sealant between enamelled wire and conducting magnet core; Line 123 encloses surface through fine grinding process, and flatness is at positive and negative 0.01mm;

Under meeting magnet ring is filled the saturated voltage that magnetizes, this coil can normally work 10 cycles, and not abnormal, the table magnetic of this magnet ring measured by Distribution of Magnetic Field measuring instrument of just magnetite charging magnetic can being taken away.Thus judge that whether this coil is qualified.

Above content is in conjunction with concrete execution mode further detailed description of the utility model, can not assert that concrete enforcement of the present utility model is confined to these explanations.For the utility model person of an ordinary skill in the technical field, without departing from the concept of the premise utility, some simple deduction or replace can also be made, all should be considered as belonging to protection range of the present utility model.

Claims

1. a high accuracy magnetic coder magnet ring fabricating tools, comprise the magnet ring location-plate (3) for locating magnet ring (8), it is characterized in that, also comprise to be positioned at directly over described magnet ring location-plate (3) and immediately below upper coil (1) and lower coil (2), described upper coil (1) and lower coil (2) for have multipole to filling coil.

2. high accuracy magnetic coder magnet ring fabricating tools as claimed in claim 1, it is characterized in that, described upper coil (1) and lower coil (2) accuracy tolerance scope are less than ± 0.01mm, and in the coil of coiling, the length of every single line is consistent with curved radian.

3. high accuracy magnetic coder magnet ring fabricating tools as claimed in claim 1, it is characterized in that, described upper coil (1) and lower coil (2) are equipped with corresponding conducting magnet core (5), upper coil (1) and lower coil (2) are the enamelled wire structure of multiple wire casing, the distance on the enamelled wire of upper coil (1) and lower coil (2) and conducting magnet core (5) surface at about 0.05mm, the distance on the line in each wire casing and conducting magnet core surface consistent.

4. high accuracy magnetic coder magnet ring fabricating tools as claimed in claim 3, be is characterized in that, fixed between described enamelled wire and conducting magnet core by electron pouring sealant.

5. high accuracy magnetic coder magnet ring fabricating tools as claimed in claim 1, is characterized in that, upper coil (1) and lower coil (2) surface are through fine grinding process, and flatness is at positive and negative 0.01mm.

6. high accuracy magnetic coder magnet ring fabricating tools as claimed in claim 1, is characterized in that, corresponding described upper coil (1) and lower coil (2) are also provided with cooling system.

7. high accuracy magnetic coder magnet ring fabricating tools as claimed in claim 1, is characterized in that, the magnet ring density of corresponding processing is homogeneous, and surperficial degree accuracy tolerance scope is less than ± 0.1mm.

8. high accuracy magnetic coder magnet ring fabricating tools as claimed in claim 1, is characterized in that, described frock adopts the power supply that magnetizes filling multistage magnet ring specially.

9. high accuracy magnetic coder magnet ring manufacture method as claimed in claim 8, it is characterized in that, the described power supply that magnetizes filling multistage magnet ring specially, its electric capacity and output have employed the wiring construction of low inductance low resistance.