SU1232387A1 - Centrifugal-inertia chuck to lathe - Google Patents

Description

The invention relates to the field of machine tool construction and can be used to fasten parts in centering centers with an end on a lathe type with both left and right spindle rotation in an automated machining cycle using industrial robots.

The aim of the invention is to increase reliability in operation by eliminating the possibility of jamming of the cam cams during unclamping.

Figure 1 shows the proposed centrifugal inertia cartridge, the cut; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 1.

Cams II 5. A brake clutch 13 is mounted on spindle 12.

Automatic centrifugal inertia cartridge operates as follows.

Left rotation of the cartridge. To initial

 the moment of the start of the spindle 13 (not shown) is preliminary clamping carried out by the lead fingers 10, then the centrifugal forces reduce the rotary cams 5 and clamp the part 14, simultaneously stretch

10 spring 4. When machining the cutting forces, the attachment force of the part 14 automatically increases.

, At the moment of sharp braking of the spindle 12 and the housing 1 by means of the brake clutch 13 to the time created in the housing 1 of the cartridge on the bearing 2 5 by the force of elasticity of the spring 4, the floating ring 3 is ascending, podrugi-turn the floating ring 3 along

spring-loaded 4. Through the floating rotation of the cartridge relative to the brake ring 3, rotary cams 5 and flywheel housing 1 of the cartridge and spread out 6 passes axis 7. On the housing 1 bearing cams 5, add kinematics 2 held by the flange 8. Cams 5, the torque of the rotating masses, floating ring 3, slewing cams 5 and

the flywheel 6 (equal to the product of the total moment of inertia of the floating ring 3, the steering cams 5, the flywheel 6 by their angular velocity) relative to the brakes installed on the axis x 7 by means of 9 rolling bearings.

The interconnection of the housing 1 with the rotary cams 5 is carried out by the lead

with fingers 10, which are the stud of the housing I and the clamped part 14. ki, screwed into the case 1 at one end. As a result, the rotary cams 5 automatically restrict the part I.

Cams II 5. A brake clutch 13 is mounted on spindle 12.

Automatic centrifugal inertia cartridge operates as follows.

Left rotation of the cartridge. To initial

the moment of the start of the spindle 13 (not shown) is preliminary clamping carried out by the lead fingers 10, then the centrifugal forces reduce the rotary cams 5 and clamp the part 14, simultaneously stretch

spring 4. When machining cutting forces, the attachment force of the part 14 automatically increases.

, At the time of sudden braking of the spindle 12 and the housing 1 using torA-A

fus.2

6-5

//

Fig.: 5

Compiled by T. Kravchenko

Editor L. G rati l loTechred I. VeresKorrektor A. Obruchar

Order 2500/12 Circulation 1001Subscription

VNIIPI USSR State Committee

inventions and discoveries

113035, Moscow, Zh-35, Raushsk Ob., 4/5

Branch PPP "Patent, Uzhgorod, st. Design. four

Claims (1)

CENTRIFUGAL-INERTIA CARTRIDGE TO LATHE MACHINE. · In the housing of which there is a floating ring with axes on which rotary cams are mounted, connected to the housing by means of pulling fingers, characterized in that, in order to increase operational reliability by eliminating the possibility. jamming of the rotary cams, straight open, it is equipped with a flywheel located on the axes of the rotary cams, the mass of which is greater than the mass of the housing, and a brake element located on the spindle, designed to interact with the housing. No. Stock No. ФО оо