SU1256871A2 - Arrangement for securing end tool - Google Patents

Description

spring pitch 3, and the depth in the lead-in part of the thread - for example; spring radius. The thread has the opposite direction to the tool rotation. To ensure the unscrewing of the tool on the neck 8, the turnkey 9 flats are made. On the cylindrical surface of the cracker 6, a thread is made, the pitch and direction of which correspond to the pitch and direction of the spring. The device works as follows; its invention relates to mechanical engineering, namely to devices for fastening the end tool in the machine spindle, and is in addition to the author. St. No. 986623.

The aim of the invention is to increase the reliability of the tool attachment by increasing the contact area of the tool with the device.

FIG. 1 shows the device, a general view; in fig. 2 shows section A-A in FIG. 1. Yu zom.

The device includes a housing 1, inside the installation tool 5, for example,

the pin 2 is pressed into it. The spring 3c of the machine spindle is pre-fixed in its end and rigidly fixed on the pinch into the spring 3 of the rusk 6 to the side,

2, and the other end covers the shank opposite to the rotation of the tool,

4 end tools 5, for example, a zener to the stop at the end of the pin 2, using a slot. Between the end of the shank g-4 and a flat screwdriver under its spherical end.

Then, the shank 4 of the tool 5 is screwed into the spring 3 up to the stop into the spherical end of the nut 6. At the same time, the tapered thread contributes to its reliable fastening.

When the tool 5 is supplied to the hole being machined, it will self-center due to the elastic properties of the spring 3,

CIM end of the pin 2 is cylindrical rusk 6, the ends of which are performed respectively in the form of elements in contact with it.

on the plane of the cracker 6 with pin 2 and ball (Fig. 1), the end of the biscuit in contact with pin 2 is made flat, and the end in contact with the spherical end of the shank 4 is made with

inner conical surface. Inter-25 low joint cracker 6 with shank

The housing 1 and the shank 4 are provided with 4 tools,

clearance 7. In the processing of the workpiece due to

The direction of the coils in the spring 3 against the supply force arises the force of friction along the rotation of the end tooling surfaces of the connection of the cracker 6 from the pin, volume 2 and the shank 4, transmitting the rotation of the shank 4, the taper takes 30 minutes to the tool and unloads the thread with an angle o step. which corresponds to the spring.

spring pitch 3, and the depth in the lead-in part of the thread - for example; spring radius. The thread has the opposite direction to the tool rotation. To ensure the unscrewing of the tool on the neck 8, the turnkey 9 flats are made. On the cylindrical surface of the cracker 6, a thread is made, the pitch and direction of which correspond to the pitch and direction of the spring. The device works in the following way.

on the plane rusks 6 with pin 2 and ball

(rig 2

Claims (1)

DEVICE FOR FASTENING THE END TOOL by ed. St. No. 986623, characterized in that, in order to increase the reliability of fastening, it is equipped with a cylindrical cracker installed between the pin and the tool shank, while on the cracker there are surfaces in the shape of the corresponding surfaces of the pin and tool shank intended for contact, and on the cylindrical surface of the cracker a thread is made with a step and a direction corresponding to the step and direction of winding the spring. figure 1 12.89521 ¹ ns