RU1787710C - Block of tool for rotary machine for cutting hollow articles - Google Patents

Description

The invention relates to the processing of metals by cutting and can be used in mechanical engineering for trimming products.

A tool block for a rotary machine for trimming hollow articles is known, comprising a housing, a shaft connected to the rotor of the machine, a mandrel, a puller installed in the block holder, a knife and a cutting tool made in the form of a ring and mounted on the mandrel.

The disadvantage of the block is the formation of burrs on the cut and the insufficient durability of the cutting tool.

The purpose of the invention is to improve the quality of the resulting workpieces and increase the durability of the cutting tool. A positive effect is achieved by preventing the formation of burrs on the inner surface, eliminating the rolling of the cut workpiece,

This goal is achieved by the fact that the known unit of the tool to the rotary machine for cutting hollow products, comprising a housing, a shaft connected to the rotor of the machine, a mandrel, a puller installed in the block holder, a knife and a cutting tool made in the form of a ring and mounted on the mandrel is equipped with a cutting tool moving unit, a rod for feeding and moving the workpiece located on the puller, conical washers, a catcher mounted on the mandrel, while the knife is made of a sleeve and mounted on the shaft coaxially with the mandrel rotation, the mandrel is mounted on the mandrel for feeding and moving the workpiece, the ring is mounted on the mandrel under the catcher with the possibility of radial movement by means of the moving unit, the conical washers are located on the mandrel on both sides of the cutting tool and are spring-loaded to it, the cutting edge on the ring is made with side of the catcher, while the cutting edge of the sleeve knife is made on the surface facing the cutting edge of the ring. The movement unit is made in the form of a disc eccentrically mounted rotatably on the drive axis.

Figure 1 shows the side of the tool, section; figure 2 - cutting elements of the block and cut the workpiece; in Fig. 3 is a vertical section of the mechanism fixing the workpiece on the catcher before it enters the sleeve knife; figure 4 - scheme of cutting; figure 5 is a block, a top view.

The tool unit includes a housing 1, mounted in a holder 2 of the technological rotor, On the rod 3 of the block, which is installed with the possibility

rotation and vertical movement, a puller of 4 finished blanks and cut rings is located.

In the upper part of the block mounted shaft 5,

associated with the rotor of the machine. A rotary knife 6 is mounted on the shaft 5. On the rod in its upper part is placed a cutting tool 7 in the form of a ring. Above ring 7 on the shaft

0 mounted mandrel 8 for feeding, moving and fixing the workpiece at the time of cutting. The rotation of the sleeve knife 6 is carried out by gears 9 and 10 from the rotor drive. A pusher 11 is mounted above the knife 6 to prevent the product from sticking and the damper 12 to press the product 13 against the end of the catcher. To move the cutting edge of the ring to an eccentric position by

0 through contact with its outer surface, on the axis parallel to the shaft, a power disk 14 is mounted, pressed against the knife by means of a drive lever 15 having a roller 16 in contact with the stationary rotor copier 17.

The catcher is fixed to the rod by means of a nut 18 fixing it. A catcher sleeve 19 is located below the cutting ring to accommodate the spring therein.

0 Above and below the cutting ring on the shaft are placed centering conical washers 20, pressed by springs 21.

The tool block operates as follows.

When moving the rod 3 using the lower rotor copier (not shown in the drawing) from the lower position to the upper, the workpiece 13 fed

0 transport rotor to the mandrel 8 mounted on the upper end of the rod. Then the mandrel together with the workpiece is introduced into the sleeve knife 6. Using a stationary rotor copier 17, by means of the water lever 15, the power disk 14 biases the cutting ring 7 located on the shaft 3. This eccentricly moves the ring relative to the sleeve knife 6 and cut the workpiece ,

0 In this case, the sleeve knife is in continuous rotation, carried out by means of a system of gears 9 and 10, To adjust the block, the cutting edge of the ring is combined with the cutting edge

5 sleeve knife. The ring is returned to its initial coaxial position by means of centering conical washers 20, which are returned to their original position by means of springs 21 after removal of the power disk, i.e. after unloading.

After the operation is performed, the pieces of the part, the rod 3 is moved to the lower position, where the cut-off part is removed by the transport rotor and the waste is discharged.

Claims (2)

SUMMARY OF THE INVENTION 1. Tool block for a rotary machine for trimming hollow articles, comprising a body, a shaft connected to the rotor of the machine, a mandrel, a puller mounted in a block holder, a knife and a cutting tool made in the form of a ring and mounted on a mandrel, characterized the fact that in order to improve the quality of the resulting workpieces by increasing the durability of the cutting tool, it is equipped with a node for moving the cutting tool, a rod for feeding and moving the workpiece located on the puller, conical washers, catcher, mounted on the mandrel, while the knife is made of a sleeve and rotatably mounted on the shaft coaxially with the mandrel, the mandrel is mounted on the rod for feeding and moving the workpiece, the ring is mounted on the mandrel under the catcher with the possibility of radial movement by means of the moving unit, conical washers are located on the mandrel on both the sides of the cutting tool and are spring-loaded to it, the cutting edge on the ring is made from the side of the catcher, while the cutting edge of the sleeve knife is made on the surface facing the side the cutting edge of the ring. 2. The block according to claim 1, characterized in that the displacement unit is made in the form of a disk eccentrically mounted rotatably on the drive axis.