SU1611600A1 - Installation for trimming flash - Google Patents

Abstract

The invention relates to the field of mountains for stamping production, in particular to the transverse rolling of products such as support rollers of tractors, and can be used for two-side removal of waste that occurs during rolling. The aim of the invention is to increase the reliability of operation by eliminating the embedding of the disk cutters 8 of the flanges of the processed rollers. In the upper position of the tool head disc cutters 18 under the action of the copier 12 divorced. The spreader plate 25 is inserted into slots made in the floating housings 20 of the cutters 18. When the head is lowered, it moves with the plate 25 and the bar 26 relative to the wedge copy 12. The spreader plate 25 does not allow the cutters to converge. When the head is lowered into the zone of the ends of the flange of the part 32, the length of the string 26 is selected, the plate 25 is pulled out of the slots of the housings 20 and the disk cutters 18 converge axially until they come into contact with the ends of the part 32. Next, the cutting is performed. During the reverse course of the head plate 25 enters the slots of the housing 20, fixing the cutters 18 in the divorced position. 3 il.

Description

 I The invention relates to mountains of scale-to-eternal production, in particular, to cross-section rolling of products such as support rollers of tractors, and can be used for two-side removal of scrap that occurs during rolling. The purpose of the invention is to increase the reliability in operation by eliminating the incision of disk cutters in the flanges of the processed rollers.

FIG. Figure 1 shows an installation for removing flash, incision; in fig. 2 - instrumental head in a diluted state at the moment of approaching the part; in fig. 3 - the same, in the working condition during the trimming process.

The device comprises a frame 1, in which:) they are mounted on the drive 2 and the driven 3 shafts, the drive rolls 4 of the centering and drive mechanism of the product, which are kinematically connected with each other by means of a gear train through a parasitic brush 5. The profile. drive rolls are made corresponding to the profile of the product. The drive rolls 4 are driven in rotation from the motor b via a V-belt drive and a gearbox (not shown).

In the upper part of the frame 1, there is an instrumental head 7, mounted by an IB driver-lever 8 fixed in stanna I on trunnions 9. The instrumental swivel 7 is kinematically connected to the stem IO of the swinging hydraulic cylinder 11 and to the keyframe 12 fixed to the adjustable rope 13 on the axes x 14 is unsuitable relative to the carrier 8. I The wedge copier 12 is made for easy manufacture and mating with the lever 8 of a cylindrical shape with two inclined MH bevels in the lower part, forming a wedge, with a through longitudinal and concentric ch chemical hole bolsche- Guo diameter.

In the upper part of the wedge copier 12, there are flats and a transverse through-hole for the semi-axes 14 of fastening the wedge copier 12 to 13 tons. In the lower casti of the wedge copier 12 there is a rectangular notch 15, made along the axis of symmetry across the wedge. For unloading parts from the installation in the bed 1 Fixed the hydraulic cylinder 16 with the pusher 17;

The tool head 7 (Fig. 2) comprises self-rotating disk cutters 8 mounted on hollow semi-axes x 19 & floating housings 20 on bearings 21. The inner end of the floating cages-bco 20 has an inclined bevel at an angle, | with the bevel angle of the wedge casing Npa 12. The disk cutters 18 interact with each other by means of the tension cushion 1 and the coil springs 23.

For a more accurate positioning of the disc cutters 18 relative to the ends of the rollers being machined, excluding the cutting of the cuts 18 into the flange body when the tool head 7 is lowered, it is equipped with an adjustable fixation mechanism 24- 5 Zi of the diluted position of the incisors 18 embedded in a copy copier 12. The mechanism 24 for fixing the diluted the position of the incisors 18 includes a flat rectangular spacer plate 25 joined with a rectangular groove 15 made in a wedge copier 12. The plate 25 has a rigid axis located along its axis of symmetry T Gu 26, built with a gap in the longitudinal through hole in the wedge cam 12. Th ha 26 passes

5 through the spring 27 located between the spacer plate 25 and the wedge copier 12 and enters a blind longitudinal hole located coaxially with a through hole in the wedge copier 12.

Q In order to precisely adjust the height of the disc ends from the workpiece, at which they will sharply converge, the ha ha 26 has a threaded end extending beyond the limits of the wedge copier 12, on which

5 nuts 28 and lock nut 29.

The inclined surfaces of the wedge copier 12 face the disc cutters, and on the inclined surfaces of the floating body. owls 20 are rectangular semi-nests made coaxially with a rectangular slot 15

0 key copier 12. Cord and half-slots 30 (somewhat) exceeds the thickness of the spacer plate 25 associated with them, the width of which is smaller than the width of the wedge copy 12. There are 31 guides for feeding the part into the unit and removing it from the unit.

The installation works as follows;

Detail 32 with burr after rolling

enters the guides 31, and on them

Q rolls onto drive rollers 4. From the electric motor 6, the rotation is turned on, the drive rolls 4, the part 32 under its own weight begins to rotate. In the upper position of the tool head 7, the disk cutters 18. Under the action of the wedge-mounted Copier 12 are in a diluted state. The spacer plate 25 under the action of its own weight and the spring 27 is lowered into the socket formed by the half-sleeves 30 of the divorced floating bodies 20. In this case, the width of the resulting socket from

0 full impact on the cases 20 of the wedge copier 12 is greater than the width of the spacer plate 25.

The hydraulic cylinder 11 receives a command to lower the rod 10 of the carrier 8. The instrumental head 7 is lowered along with

the carrier 8, which rotates on the pins 9. The wedge copier 12, mounted on the adjustable bar 13 suspended on a semi-axle x 14 to the frame 1, does not change its

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the height when lowering the carrier 8 with the cutting head 7, therefore, when lowering the cutting head 7 moves together with the spacer plate 25 and the lower 26 relative to the wedge cam 12,

Under the action of the springs 23 and the narrowing wedge copier 12 when lowering the head 7, the disk cutters 18 should approach in the axial direction along the wedge copier 12, however, the spacer plate 25 located in the semi-nest 30 between the divorced floating bodies 20 and moving down along with the tool head 7 does not allow them to go.

Thus, up to a certain stroke, the tool head 7 is lowered with diluted disc cutters 18. The length of this stroke depends on the length of the string 26, rigidly connected to the plate 25 and its protruding threaded part from the wedge copy 12. The length of the string 26 is adjusted by the nut 28 and the counter-nut 29 is the longer the ha is 26, the longer the tool head 7 is lowered with divorced cutters 18. When the tool head 7 is lowered into the zone of the ends of the outer flange of the part 32, the length of the cable 26, protruding from the wedge copier 12, is selected and When the tool head 7 is lowered, the spacer plate 25 is retained by means of nuts on the wedge cam. Further lowering of the tool head 7 leads the spacer plate 25 out of the seat formed by the floating bodies 20, which, by the action of the springs 23, converge in the axial direction before contact with the tori of the part 32.

Thus, the disk cutters 18 fit the workpiece with a guaranteed clearance, having the ability to self-aligning at the ends of the workpiece, excluding the cutting of the incisors into the offset flange of the part. The contact of the part 32 occurs by the upper point of the inner side surface of the disk cutters 18. After the disk cutters 18 self-aligning on part 32 and the rotational speeds of the cutting edge of the cutters 18 and the workpiece 32 are equalized, the tool head 7 is lowered and the 18 5 cut off the cutting heads. The cut-off bald falls. A command is given to the hydraulic cylinder 11 to lift the carrier 8 with the tool head 7. The tool head 7 interacts with the wedge-gun 12 during the lifting.

Under the action of the wedge, the floating bodies 20 of the disc cutters 18 are consumed. While the shells 20 of the cutters 18 have not expanded to the full width of the spacer plate 25, the spring-loaded spring 27 of the flat plate 15 is pushed by the bodies 20, the ha ha 26 leaves the wedge copier 12 Rising into the upper position, the cutters 18 are dispersed over the entire width of the wedge, and the floating bodies 20 with their semi-half-sleeves 30 .Q create a nest that is wider than the width of the spacer plate 25. Lastly, under the action of spring 27 and its own weight, it goes into the slot, fixing the diluted P the position of the incisors 18 and the obstacle to their approach when lowering the tool head 5 during the next cycle. After trimming, the command is sent to the discharge hydraulic cylinder 16, which pushes the workpiece 32 with its pusher 17 along the guides 31 from the machine. The unit is supplied with the next part. The cycle is repeated.

Claims (1)

Claiming apparatus for trimming scrap, containing drive rolls for placing the workpiece, tool head with rotary disc cutters. Drive of the head and wedge copier, characterized in that, in order to increase reliability, the installation is equipped with a mechanism for fixing the incisors, made in the form of a plate connected to a spring-loaded relative to the copier, the plate being placed in a groove made in the wedge copier, and has the ability to Acts with sockets made in 5 cutters cases parallel to the groove. // ig.1 13 18 Fiz.