SU882715A1 - Apparatus for removing flash from flat parts - Google Patents

Description

(S) DEVICE FOR REMOVING GRATE FROM FLAT PARTS

one

The invention relates to the field of welding production, and more specifically to devices for mechanized cleaning of flat parts after gas and thermal cutting.

The invention can be most efficiently used in mechanical engineering, in sheet-rolling production at thermal installations, in the cutting of rolled products and in the preparation departments of assembly and welding workshops.

A device for removing burrs from flat parts is known, comprising a holder with knives, mounted 15 with the possibility of reciprocating movement on the arms of our trans-. parts hp

A disadvantage of the known construction 20 of the device for removing burrs from flat parts is that they only reduce the burr from the sides, and the front and rear ends of the parts remain untreated. In order to remove burrs from the front and rear ends of the parts, it is necessary to turn them 90 and carry out a repeated stripping operation, which reduces the productivity of the process. thirty

The purpose of the invention is to increase the productivity and the expansion of the technological capabilities of the device.

The goal is achieved by the fact that in the device for udgshina grata from flat parts containing a holder with knives mounted for reciprocating movement on racks above the transporter of the child, the holder is mounted on racks by means of eccentrics to with the possibility of changing its position at an angle to the direction movement of parts / and the device is equipped with a mechanism for adjusting the position of the holder in relation to the workpiece, made in the form of a power factor, mounted on a stand and a lever mounted on the end of the holder and connected to the rod of said cylinder.

Such a constructive implementation of the device for removing burrs from flat parts allows increasing its productivity and expanding technological capabilities: due to the fact that the installation of the shaft on eccentrics located in bearings, S71, with a rotary plate, and the possibility of moving the drive for

The reciprocating movement of the shaft allows to change the position of the All in the horizontal plane and in height relative to the workpiece. In turn, this ensures simultaneous removal of burr from all edges of the part, regardless of its size and, therefore, elimination of part reinstallation operations, as well as processing of parts in a large range of thicknesses,

FIG. 1 shows a device for removing scrap from flat parts, a general view; FIG. 2 is view A in FIG. one; and FIG. 3 is a view B in FIG. 2, in FIG. 4 shows a section B-B in FIG. 1 at the adjusted position of the shaft in FIG. 5 is a sectional view BB in FIG. in FIG. 6 — node 1 in FIG. five; in fig. 7 is a cross-section of the FIG. five.

The device for removing burrs from flat parts consists of racks 1 and 2 in which the holder with knives, made in the form of a shaft 3, and the mechanism 4 for adjusting the position of the shaft 3 relative to the workpiece in height are mounted. A plate 5 is mounted on the rack 1, on which a drive 6 is placed for reciprocating movement of the shaft 3. The height adjustment mechanism 4 of the shaft 3 is designed as a rotary plate 7 fixed on the rack 2, on which the drive 8 is connected via a lever 9 with one end of the top 3 mounted on eccentrics 10 placed in bearings 11, the other end of shaft 3 is connected by frame 12 with output shaft of drive b, which has eccentric 13. Plate 5 with drive 6 is mounted for movement along guide 14 of rack 1 . A sleeve 15 is put on the shaft 3, an imeklda rubber layer 16, on the inside of which additional bushings 17 are placed, protecting the sleeve 15 from turning relative to the shaft 3. Along the entire length of the sleeve 15, circular knives 18 are displaced relative to each other in the radial direction. the edges of the circular knife 18 at an angle of 10-15. the undercut is made, and a groove 19 is made on the inner surface of the circular knives in contact with the rubber layer 16. The Vtu / 1ka 15 is fixed from the displacement of the forsiB direction of the longitudinal axis of the shaft with washers 20 and nuts 21.

The device works as follows.

The work piece 22 is placed on the roller table 22 (not shown, and the pneumatic drive 8 is turned on, while the shaft 3 mounted in the eccentrics 10 is lifted above the roller bed 22 to skip the part. After that, the air drive B is turned off and the shaft 3 is lowered onto the part. The rubber layer 16 is pressed in, the rubber is pressed into the grooves 19, and the circular knives (1) adjacent to these discard the rake on both sides. The drive b is turned on and the shaft 3 starts to reciprocate, moving relative to its longitudinal axis, the cut of the tongs. Depending on the dimensions of the workpiece, the position of the shaft 3 in the horizontal plane is changed by setting it at an angle to the axis of the part. To do this, along the guide 14 of the stand 1, move the plate 5 with the actuator 6, which being connected through the eccentric 13 with one end of the head 3 through the frame 12, when moving, causes a change in the position of the shaft 3, which allows the workpiece to be machined simultaneously over the entire parameter (see FIG. four)

The device for removing burrs from flat parts in comparison with the known samples of similar equipment allows to increase the productivity of stripping of bur due to its simultaneous removal along the entire perimeter of the sheet being processed, as well as to expand technological capabilities, as it allows to process lengthy parts up to 80 mm thick. At present, the enterprise’s annual program for the production of metal structures amounts to 20,000 tons, with the labor intensity of stripping one ton at 1.8 n / h. The introduction of the proposed device reduces the complexity of approximately 1 n / h, which will allow us to obtain a conditional annual economic effect in the amount of 11,200 rubles.

Claims (1)

1. USSR author's certificate I 491466, cl. At 23 K 7/00, 04/05/73. 12.13 Fig.Z