Knife head

 

(57) Abstract:

The invention relates to metal working on slotting and planing machines and can be used in particular for the manufacture of cylindrical and conical teeth, as well as for cutting of workpieces. Cutting head includes a housing with a spring-loaded thrust and box with cutter, connected via a hinge. For increased cutting performance and expand the technological capabilities of the hinge insert is made spherical. At the ends of the housing and pull made of trapezoidal teeth, and the cutter is made two-way. 1 C. p. F.-ly, 4 Il.

The invention relates to metal working and can be used for slotting and planing machines, for example, for cylindrical and conical teeth (using a dividing head and/or rotational movement of the tool head around its axis), as well as for cutting blanks.

Known cutting head with unilateral mode of cutting, which includes a plate-fold, the lower edge of which is set below the top of the cutter.

When working stroke of the head plate, the flap is folded back, and at idle abuts against the workpiece and podnimaetsja, 1975 , S. 142, Fig. 83).

The disadvantage of this head is that the plate-fold constantly rubs against the surface of the workpiece, causing the workpiece is damaged, and the plate wears.

Also known cutting head with single-sided cutting mode, in which case the axis mounted for rocking the box with cutter, and an electromagnet with an anchor, while the head is equipped with rigidly connected with the armature and spring relative to the housing thrust and anchor associated with the insertion of a hinge (see ed. mon. USSR N 1458111, CL 23 D 13/02, 89, is taken as a prototype).

In this head reduced effort clamp cutter to the workpiece at idle and, thus, increased cutter life.

However, the performance of known heads with one-way mode cut low, and technological capabilities are limited due to the fact that the cutters are in the process of working must constantly stylability.

The task of the invention to increase cutting performance and expanding the technological capabilities of the head by automatically backing of the cutter during the cutting process.

The problem is solved in that the cutting Goloka are spherical the ends of the housing and the thrust provided with trapezoidal teeth and the cutter made bilateral (bilateral edge sharpening).

In addition, the cutter may be made in the form of a disk.

The construction of the head is illustrated by a drawing.

In Fig. 1 shows a cylinder in section; Fig. 2 is a view As in Fig. 1; Fig. 3 - section b-B in Fig. 1; Fig. 4 - view In Fig. 1.

The head consists of a body with a built-in thrust 2 with spring 3 and the insert 4, the ends are thrust 2 and the housing 1 is made in the form of incoming engages trapezoidal teeth, 5. Bilateral cutter 6, made in the form of a disk, is attached to the insert 4 and the insert to the housing 1 by screws 7 and 8. In the spherical part of the thrust 2 has a groove 8 (for lubrication).

Spring 3 in the housing 1 must be slightly compressed and the gap f in engagement of the teeth 5 should provide the tilt of the cutter when working stroke forward and back about 5o.

When the head during work moves forward and backward, the cutter 6 is tilted from left to right until it stops at the sides of the trapezoidal teeth 5 on the ends of the housing 1 and rod 2 (approximately 5oin each direction) that will provide automatic backing cutter.

P is the processing of workpieces during forward and backward, i.e. without the idle passages and, in addition, to provide automatic two-sided backing cutter.

These properties are unknown sources of information and confusing for professionals, which confirms the inventive step of the application.

1. Cutting head, comprising a housing with a spring-loaded thrust and box with cutter, connected via a hinge, wherein the hinge inserts are spherical on the ends of the housing and pull made of trapezoidal teeth, and the cutter is made two-way.

2. Knife head under item 1, characterized in that the cutter is made in the form of bilateral disc.

 

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1 tbl, 1 ex

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1 tbl

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