CN2299688Y - Energy-saving efficient multi-pole eletromagnetic chuck - Google Patents

Abstract

The utility model relates to an efficient energy-saving multi-pole eletromagnetic chuck, which belongs to chucks. The utility model comprises an electromagnetic coil, a tyre cushion, and a multi-pole panel, which is composed of a magnet conducting member and a magnet isolating member. The multi-pole panel is composed of an inner magnetic cushion and an outer magnetic cushion, which are positioned by an excircle and an end face, and are tightly riveted and cast into integration by locating the interval between N-S magnetic poles. The multi-pole panel is fixed on an external cap. The utility model has the advantages that production efficiency is high, because the suction force of the efficient energy-saving multi-pole eletromagnetic chuck is greater than the suction force of a monopole type electromagnetic chuck, which can raise the production efficiency by 100% or so; electrical energy is saved, common power consumption of the monopole type electromagnetic chuck is 100-500W, while the power consumption of the efficient energy-saving multi-pole eletromagnetic chuck is 7-30W; magnetic remanence of workpieces is little; the service life of the electromagnetic coil is about 11 times longer.

Description

Energy-efficient multipolar electromagnetic chuck

A kind of energy-efficient multipolar electromagnetic chuck belongs to bearing industry grinding machine and super lapping machine bed chuck.

Up to this point, particularly on the bearing industry, generally use the acyclic type magnechuck in China on the grinding machine, there is following deficiency in this chuck: 1, power consumption is big, is generally 100-500 watt, the waste electric energy; 2, solenoid voltage height, current density is big, and the life-span is low, and is fragile; 3, suction is little, and production efficiency is low; 4, the residual magnetism of workpiece is big.The U.S. develops the multipolar electromagnetic chuck, and the material copper and the iron that constitute magnechuck weld together used scolder formulated, also needs weld in special equipment, and difficulty is very big, present domesticly also do not satisfy the requirements.

The purpose of this utility model is to overcome the problem that above-mentioned prior art exists, provide N-S magnetic pole to be transformed into all-in-one-piece N-S magnetic pole through riveted joint and casting through radial and axial magnetic conduction and NULL with external many lobes, carry out multistage distribution, make its solenoid voltage low, power consumption is little, compact conformation, and manufacturability is better, a kind of energy-efficient multipolar electromagnetic chuck easily manufactured, that cost is low.

The utility model is realized with following technical scheme: comprise solenoid, tyre cushion and by magnetic conduction and the multipole panel that constitutes every the magnetic member, the riveted joint of N-S magnetic pole gap is located and found to multipole panel 12 by internal magnetic pad 3 and outer magnetic pad 4 with cylindrical and end face, the formation that pours into an integrated entity after riveting tightly is fixed on multipole panel 12 usefulness screws and taper bolt on the enclosing cover 7 again.

Operation principle: the alternating voltage 6.3V that provides by transformer secondary output, after the filtering of 24V process bridge rectifier, regulator potentiometer obtains DC voltage 6.3V again, 10-20V, after this DC voltage is added to solenoid 13, coil produces the N-S pole field through DC current, and the every magnetic line of force in magnetic field is set out by the N utmost point and forms the closed-loop path through outer magnetic core array 8 → inner magnetic core axle 9 → core axis 5 → internal magnetic pad 3 → tyre cushion 2 (the N utmost point) → workpiece → tyre cushions 2 (the S utmost point) → outer magnetic pad 4 → enclosing cover 7 → outer magnetic core array 8.According to the size of diameter of work, can produce 4,6,8,12 pairs of N-S magnetic poles, it is 4 pairs of N-S magnetic poles that the embodiment of back has provided tyre cushion.

The beneficial effect that the utility model had: because external many lobes N-S magnetic pole is assembled into two all-in-one-piece N-S magnetic poles through magnetic conduction with every the magnetic member through riveted joint and casting, the magnetic line of force is an air gap through two sections 0.1-0.2mm in the closed-loop path, this air gap is littler than acyclic type magnetic card dish air gap, and it is much little, so, 1, the magnetic induction intensity that produces in the air gap is big, and therefore, suction is also big.Compare with the acyclic type magnechuck, suction is big under the identical situation of number of ampere turns, and general big 1-3 doubly.Because suction is big, when grinding, under the situation of geometric accuracy that does not influence workpiece and burn, the increasing that the infeed amount can be suitable, thus can enhance productivity 100%.2, the general power consumption of acyclic type magnechuck is 100-500W, and the energy-efficient multipolar electromagnetic chuck power consumption that the utility model provides is 7-30W, and energy-saving effect is obvious.3, the remanent magnetism of workpiece is little.4, solenoid voltage is low, and the life-span is long, than long about 10 times of acyclic type magnechuck, thereby reduces consumption costs, can give magnetic, disconnected magnetic, anti-magnetic, demagnetization on lathe automatically.5, form through riveting dress and casting between energy-efficient each member of multipolar electromagnetic chuck, therefore, solved member because of the difficulty of the different welding of material and save the required special equipment of welding, easily manufactured, with low cost, more compact structure, manufacturability are better, it can be applicable to grinding machine and super lapping machine bed on the bearing industry, comprising footpath, external diameter, interior external diameter, raceway groove, raceway, rib within grinding and the microstoning bearing ring, also can be used on the industries such as automobile, lathe, tractor, motorcycle, aviation, instrument and meter.

Description of drawings:

Fig. 1 is energy-efficient multipolar electromagnetic chuck front view;

Fig. 2 is energy-efficient multipolar electromagnetic chuck right view.

Describe the utility model in detail below in conjunction with drawings and Examples.Accompanying drawing has provided the structure of a kind of most preferred embodiment of the utility model, and the utility model can produce 4 pairs of N-S magnetic poles, and the N-S magnetic pole logarithm of generation is decided by the size of processed diameter of work.Energy-efficient multipolar electromagnetic chuck is made of following elements: base 14 adopts external diameter seam location, end face is close to, it is external diameter and end face location, be fixed on the workpiece spindle headstock housing with 6-M10 * 20 garden column cap soket head cap screws, outer magnetic core array 8 is located with seam and end face with base 14, fastening with 6-M6 * 16 socket cap screws, coil 13 is packed on the outer magnetic core array 8, inner magnetic core axle 9 rear ends of packing in the outer magnetic core array 8 are connected with work spindle, along with main shaft rotates together, with seam and end face location, screw 4-M6 * 20 are fixing; Inner magnetic core axle 9 front ends and core axis 5 are with seam and end face location, and screw thread is tight; Core axis 5 and magnetic shield tube 6 interference fits, be fixed together with 4-A6 * 14 garden taper pins, magnetic shield tube 6 is located with the seam end face with enclosing cover 7, rivet tightly with 4 rivets again, internal magnetic pad 3 is located with cylindrical and end face with outer magnetic pad 4, after finding the N-S magnetic pole gap, rivet tightly with 4 long rivets 11 again, pour into a mould tin bronze processing back at last and constitute multipole panel 12, multipole panel 12 usefulness 4-M6 * 25 soket head cap screws and circular cone pin are fixed on the enclosing cover 7, tyre cushion 2 use 4-M6 * 18 soket head cap screws to be fastened on the internal magnetic pad 3 respectively with seam end face location again after radially fixing and outer magnetic pad 4 on, seat board 18 usefulness 3-M10 * 30 socket cap screws are fixed on the base 14,2 lower fulcrum blocks 17 and last fulcrum block 19 are with the T-slot and the end face location of seat plate 18, use 2-M10 * 60 socket cap screws fastening again, fulcrum 15 usefulness 2-M6 * 10 soket head cap screws are clamped on the fulcrum block 16, two fulcrum blocks 16 are respectively charged in the square groove of lower fulcrum block 17 and last fulcrum block 19 and lead, adjust work centre and fix, magnetism isolating spacer 1 usefulness 2-M5 * 16 sunk screws are fixed on the internal magnetic pad 3.

Claims (1)

1, a kind of energy-efficient multipolar electromagnetic chuck, comprise solenoid, tyre cushion, by magnetic conduction and the multipole panel that constitutes every the magnetic member, it is characterized in that multipole panel (12) by internal magnetic pad (3) and outer magnetic pad (4) with cylindrical and end face location and find the riveted joint of N-S magnetic pole gap, the formation that pours into an integrated entity after riveting tightly is fixed on multipole panel (12) on the enclosing cover (7) with screw and taper bolt.

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