SU1337207A1 - Device for scraping bright - Google Patents

Description

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The invention relates to metalworking, and specifically to devices for working the edges of sheet blanks.

The purpose of the invention is the expansion of technological capabilities by ensuring the processing of edges of sheets of different shapes and thicknesses.

FIG. 1 shows schematically an IQ stripping device, general view; and FIG. 2 shows section A-A in FIG. one; on ig. 3 shows the node I in FIG. one.

The device for stripping the edges of the work pieces consists of the body 1, the drive 2, the cutting tool 3 and two clamping disks 4 and 5, located on both sides of the cutting tool 3, which is a milling cutter c. radius r, fixedly mounted on the drive shaft 6. Each clamping disk has a separator 7, made in the form of a ring, in which the remaining hardened balls 8 are mounted around the circumference of the radius R. The clamping disks are mounted on the shaft 6 to rotate around it in roller bearings 9 and simultaneously with the possibility of movement along the axis of the shaft 6, and, consequently, relative to the cutting tool 3 along sleeves 10 or 11. To expand the clamping discs between them and the cutting tool, two spreaders are mounted rings 12. With one 35 end, the spacer ring rests on the side surface of the cutting tool and the other on the balls 13 mounted on the washer 14 supported on the springs 15 mounted in the housing of the clamping disk 4 or 5. From the displacement in the vertical plane the distance rings are held clamps 16 and 17. Between the lids there is a gap in which the spacer rings are located. 45 The drive shaft 6 has a cylindrical bore located along its axis and two radial grooves in which the levers 18 and 19 are located. The lever 18 rests directly on the thrust 50 of the sub-support 20 and through it on the clamping disk 5, and the lever 19 rests on the thrust bearing 21 through the springs 22 and through them to the clamping disk 4. In the cylindrical hole of the drive shaft 55 there is a clamping screw 23 connected by thread to the drive shaft 6 and the sleeve 24, and through them to the levers 18 and 19. At the end clamping

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screw 23 has a key hole or a power handle.

The device d :: trimming the edges of sheet parts works as follows.

The workpiece (sheet) is inserted into the gap between the clamping discs 4 and 5. Rotating the clamping screw 23 by means of a key or knob, move it along the thread relative to the longitudinal axis of the drive shaft 6. At this, the projecting part of the clamping screw 23 presses the lever 18 and through the stop the bearing 20 transmits force to the housing of the clamping disk 5, which moves toward the clamping disk 4 through the sleeve 11. The springs 15 are then compressed, and the spacer ring 12 enters the housing of the clamping disk 5, the sleeve 24 at the same time twisting onto the clamping screw 23, the lever 19 and through the springs 22 and the thrust bearing 21 transmits movement to the housing of the clamping disk 4, which moves to the clamping disk 5 through the hub 10. Closing, the clamping disks 4 and 5 clamp the treated sheet along the balls 8 installed in the separator 7 the arc line formed by the radius R of the circle along which the balls 8 are mounted in the clamping discs. At the same time, a part of the sheet being machined, enclosed in a segment formed by the edge of the sheet and an arc with a radius R and height h acquires the necessary rigidity and stops vibrating when exposed to a cutting tool 3 (cutter), whose radius is equal to g. Sheet processing (chamfering on both sides) occurs when the actuator 2 mounted on the housing 1 is turned on and the disk is moved on rotating balls 8 relative to the clamped disks with a rotating cutting tool (cutter), or when the milling cutter with clamping disks moves relative to epodvizhnogo sheet. At the same time, the clamping disks 4 and 5 freely rotate around the drive shaft 6 on the bearings 9, rolling on the balls 8 along the clamped sheet. Since the cutting tool (milling cutter) is always in the middle of the fixed section of the sheet (near the clamping point), this eliminates the vibration of the sheet and creates optimal conditions for its processing. In addition, it

The free movement of the cutting tool 3 together with the clamping discs 4 and 5 in the clamped state along the edge of the sheet being machined makes it possible to process the edges of the sheet parts of straight, oval or arbitrary shape. Formula

invention

mf

A stripping device containing clamping discs mounted rotatably on the drive shaft of the cutting tool, located on either side of the tool, characterized in that, in order to expand technological capabilities, by processing edges of sheets of various shapes and thicknesses, the clamping discs are installed with the possibility of axial movement, and fta the periphery of each disk is made annular groove, in which the balls introduced into the device are located.

 21 g

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Editor E. Sligai

Compiled by N. F Inn Techred M. Didyk

4080/13

Shooting gallery; w 974Subscribe

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, F - 35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, st. Project, 4

cpue.Z

Proofreader V.Zut ha

Claims (1)

The claims of the invention A stripping device comprising clamping disks mounted rotatably on the drive shaft of the cutting tool, located on both sides of the tool, characterized in that, in order to expand the technological capabilities. by machining the edges of the sheets of various shapes and thicknesses, the clamping discs are mounted with the possibility of axial movement, and on the periphery of each disc an annular groove is made in which the balls introduced into the device are located.