SU846097A1 - Trimming machine for removing technological heads from piston cast works - Google Patents

Description

(54) SEPARATE MACHINE FOR REMOVAL

TECHNOLOGICAL PROFITS WITH LITB1X

PISTON PREPARATIONS

I

The invention relates to foundry, in particular, to cutting devices designed to remove technological gains (gates, vyporov) from piston blanks.

Known cutting machine with a rotary bed, carrying a column with a drive saw blade, and a mechanism for clamping the workpiece in a horizontal plane, made in the form of a vice with a rotary jaws 1.

Using a known device, it is possible to reduce the side sprues from the piston blanks, however, the removal process is inefficient, as it requires re-adjusting the clamping mechanism for alternately removing the diametrically opposed side sprues.

Also known is a cutting machine for removing sprues from cast piston blanks, containing a movable frame with pistons with flat sprues fixed on it and horizontally mounted rotating milling cutters 2.

With the help of a known machine it is possible to remove lateral high-performance

The sprues from the piston blanks produced by the traditional casting method, however, it is not possible to process the piston blanks produced by an improved technological method, which leaves the side sprue and the support on the workpiece, to be highly productive.

The purpose of the invention is to improve the performance of the device.

This goal is achieved by the fact that the machine is equipped with an additional cutting

10 with a tool for removing gates, located in front of the cutters in the direction of the working stroke of the bed, and the cutters are mounted at the level of the bottom surfaces of the pistons to remove the outlets.

In addition, an additional tool is made in the form of mechanical shears with movable and fixed knives placed in the U-shaped cut-out of the bed, and the movable knives are installed at the ends of the horizontal cross member of the T-shaped trajg of the power cylinder.

Claims (2)

FIG. 1 shows a front view of the machine; in fig. 2 is a section A-.A in FIG. 1. - The machine has a fixed base 1, above which, using a portal, are placed associated with autonomous actuators of the head 2. with milling cutters 3, and a movable frame 4 moving in the guides of said base. The bed 4 is provided with clamping jaws 5 securing the blanks 6, which have removable lateral sprue 7 and bottom clevis 8, on it. The stroke "B of the bed 4" contains an additional cutting tool to remove the flat side sprues 7, which is made in the form of scissors with fixed knives 9 fixed on the shoe 10 and movable knives II fixed on the ends of the horizontal cross member T-shaped grass sy 12 associated with the piston 13 of the power cylinder. A U-shaped cut-out 14 is provided for placing the scissors in the movable frame 4. The machine operates as follows. The billet pistons 6 are mounted with a robot-like manipulator (not shown) on the movable frame 4 so that the side sprues 7 of the arms 6 are located between the cutting edges of the knives 9 and 11, and are automatically fixed by the jaws 5. At this moment, the power cylinder 12 moving with knives 11 to fixed knives 9. As a result, the cutting edges of knives 9 and 11 cut off the sprues 7. After this, the mechanism for moving the bed 4 automatically turns on, which supplies the blanks 6 with the cut sprues 7 to the cutters 3, cut conductive risers 8. The processed workpiece from the unlocking pistons subjected to anchor them on the frame 4 acting jaws 5 and removed manipulator, the machine automatically brought into its original position. When installing the next pair of blanks into the machine, the process is repeated as described above. The use of this proposal in serial production will provide a technical effect, i.e. allows to perform high-performance processing of blanks with bottom seals due to the alternate removal of sprues and vypor that allows you to automate the process using simple manipulators. At the same time, with the use of Manipulators, the processing capacity will increase by 1.5–1.8 times as compared with the cutting machine prototype, which will reduce the cost price of pistons by approximately 7–9%. Claim 1. A cutting machine for removing technological profits from cast billets having a base with a movable bed, on which a mechanism for fixing billets is installed, and horizontal milling cutters, characterized in that it is equipped with an additional cutting tool, located in front of the cutters in the direction of the work bed. 2. The machine tool according to claim 1, characterized in that the additional tool is made up of scissors with movable and fixed knives placed in the U-shaped cut-out of the bed. 3. The machine tool according to claim 2, characterized in that the movable knives of the shears are mounted on a T-shaped traverse associated with a piston drive. Sources of information taken into account during the examination 1. USSR author's certificate No. 369984, cl. In 23 D 45/00, 1973. 2.Milling machines.-Catalog. “Metal machine tools, 4.1, TSNTI. M., 1960, gr. 6, s. 57.