CN2075990U

CN2075990U - Electromagnetic suction cup for flattening

Info

Publication number: CN2075990U
Application number: CN 90217200
Authority: CN
Inventors: 贾守庸
Original assignee: Changchun Passenger Carriage Plant Of Railway Ministry
Current assignee: Changchun Passenger Carriage Plant Of Railway Ministry
Priority date: 1990-07-30
Filing date: 1990-07-30
Publication date: 1991-05-01

Abstract

The utility model relates to an electromagnetic suction cup for flattening, which is a discoid cup body with a concave cavity. Two contiguous sides of the cup body are respectively provided with two lifting lugs, and the cup body is provided with a distributing box. The concave cavity of the cup body is distributed with electromagnets which are composed of iron cores and loops, and the number of the electromagnets is from 4 to 64. The concave cavity opening of the cup body is fixed with a magnet isolating plate, through holes are arranged on the corresponding positions of the magnet isolating plate and the iron core, and magnetic pole shoes are fixed in the through holes. A surface shape formed by the magnet isolating plate and the magnetic pole shoe is the same as the surface shape of a thin plate which is flattened. When an electromagnet which is energized absorbs a porous plate, the electromagnet and the porous plate clamp a thin plate which is flattened and heat the thin plate for generating deformation, and then, the thin plate is cooled and shaped.

Description

Electromagnetic suction cup for flattening

The utility model belongs to sheet metal leveling device class.

In the manufacture process of thin-slab structure bodies such as passenger train, subway car and automobile, all need structure crust sheet metal is carried out leveling.Present most leveling method is manual operations, and to crust sheet metal pointwise heating, hammering and water-cooled, the flatness of this leveling is very low, and condition of work is quite abominable.Existing reasonable leveling technology--vacuum cup leveling, it is to be fixed with rubber seal around a square position, make square position and the crust sheet metal side of fitting produce powerful negative pressure by vavuum pump, sheet metal is adsorbed on the square position, then to by the sheet metal opposite side of adhesive, pointwise is heated, and utilizes the cold water that circulates in the square position to cool off hot spot again, to reach the effect of leveling.The problem of this leveling technology is: 1. the rubber seal around the square position, be subjected to 650～750 ℃ of temperatures involved, easily aging life-span is low; 2. the square position area is little, and mobile number of times increases, and unproductive time is many, and efficient is influenced; 3. auxiliary body is many, and it needs a vacuum system and circulating water cooling system.

The purpose of this utility model is: a kind of sturdy and durable, leveling is effective and efficient is high electromagnetism leveling sucker is provided.

The technical solution of the utility model is: utilize an electromagnetism leveling sucker and a porous plate clamping by the leveling thin plate, thin plate is heated the generation flow, and then carry out cooling and shaping.Electromagnetism leveling sucker is the disk body of the band cavity of a dish type, and respectively there are two hangers adjacent two sides on the disk body.A distributing box is housed on the disk body, be evenly equipped with 4 to 64 electromagnet that constitute by iron core and coil in the cavity of disk body, a magnetic isolation plate is fixed at the cavity mouth place of disk body, magnetic isolation plate has through hole on the position relative with iron core, be fixed with magnetic pole piece in the through hole, the surface configuration that magnetic isolation plate and magnetic pole piece constitute is with identical by the surface configuration of leveling thin plate.

Fig. 1 is a structural representation of the present utility model, and Fig. 2 is a right view.

12 is disk bodies among the figure, disk-shaped, and the band cavity respectively has 2 hangers 11, uniform 4～64 electromagnet that are made of iron core 3 and coil 4 in the disk body cavity on the adjacent two sides on the disk body; Iron core 3 can be fixed on the bottom surface of disk body cavity by bolt 14, the both sides of coil 4 can press solidly on the bottom surface of disk body cavity by pressing plate 5 and bolt 6, coil 4 around and pressing plate 5 above be marked with resistant to elevated temperatures modification insulated paint 10, on 10, be stamped thermal insulation board 7 and air layer 8; On the cavity mouth of disk body 12, fix a magnetic isolation plate 9,9th, make, on the magnetic isolation plate 9 relative, through hole is arranged, be fixed with magnetic pole piece 1,1st by bolt 3 in the through hole, make of the lower material of magnetic resistance with iron core 3 of high magnetoresistance material by bolt 13.The surface configuration that magnetic isolation plate 9 and magnetic pole piece 1 constitutes is with identical by the surface configuration of leveling thin plate; The surface configuration overwhelming majority by the leveling thin plate is the plane, and it is curved surface shaped that a small amount of position is arranged, and also has to have concavo-convex muscle on the plane; So magnetic isolation plate 9 must just can obtain leveling effect preferably with identical by the surface configuration of leveling thin plate with the surface configuration that magnetic pole piece 1 constitutes.15 is to cooperate box among the figure, its effect be for joining power line and electromagnet coil 4 used.

During use, pass through lifting rope, hanger is sling this leveling sucker, a side that has magnetic pole piece is attached on the external skin sheet metal of thin-slab structure, opposite side at thin plate has hung a porous plate, and it is corresponding in sucker, when by distributing box after sucker send electricity, powerful electromagnetic force makes sucker hold porous plate tightly, the scraggly crust sheet metal of middle clamping is flattened, heat by the hole to sheet metal by the hole on the porous plate then, carry out chilling again--air-cooled, make sheet metal generation tension and strain the leveling typing, leveling finishes, and repeats said process again and makes the whole levelings of the external skin of total.

Claims

1, a kind of electromagnetism leveling sucker is characterized in that:

A, the disk body of a dish type band cavity is arranged;

Respectively there are two hangers b, the adjacent two sides of disk body;

A distributing box is housed on c, the disk body;

Be evenly equipped with 4 to 64 electromagnet that constitute by iron core and coil in d, the disk body cavity;

E, be fixed with a magnetic isolation plate at the cavity mouth place of disk body, magnetic isolation plate has through hole on the position relative with iron core, is fixed with magnetic pole piece in the through hole;

The surface configuration that f, magnetic isolation plate and magnetic pole piece constitute is with identical by the surface configuration of leveling thin plate.

2, leveling sucker according to claim 1 is characterized in that: between each iron-core coil, be filled with modification insulated paint between coil and disk body.

3, leveling sucker according to claim 1 is characterized in that: one deck thermal insulation board and heat insulation gas-bearing formation are arranged between coil and the magnetic isolation plate.