SU1535697A1 - Arrangement for centering and clamping parts - Google Patents

Abstract

FIELD: machine tool industry. The purpose of the invention is to simplify the design by reducing the number of structural elements. The device comprises a housing 1, a hydraulic cylinder 2, on the rod 3 of which a two-sided wedge 4, two shoulders levers 5 with rollers 6, axis 7, one-arm levers 8 with curvilinear grooves 9 through which axes 10 pass, and a spring 11 are fixed. The spring force of the spring is selected from the condition P ₁ * 98 P ₂ * 98 P ₃ , where P ₁ is the weight of the hydraulic cylinder and the workpiece, P ₂ is the elastic force of the spring, P ₃ is the force on the rod of the hydraulic cylinder. 2 Il.

Description

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FIELD: machine tool industry.

The aim of the invention is to simplify the design of the device for centering and clamping parts by reducing the number of structural elements.

Figure 1 shows the device, a cross-section; figure 2 - view And figure 1.

The device comprises a housing 1, a hydraulic cylinder 2, on the rod 3 of which a two-sided wedge 4 is fixed, two shoulders levers 5 with rollers 6, axis 7, single-arm levers 8 with curvilinear grooves 9, through which axles 10 and spring 11 pass.

The spring force is chosen from the condition

P, P P P ,,

where Р t is the weight of the hydraulic cylinder and the part being processed;

P2 is the elastic force of the spring; P5 - effort on a rod hydraulic cylinder

The device operates as follows.

When pressure is applied to the rod cavity of the hydraulic cylinder 2, the rod 3 is retracted, and the hydraulic cylinder 2 itself is pushed up by the action of the spring 11 up to the stop of the axles 10 to the lower edges of the curved grooves 9. two shoulders levers 5 and one shoulder levers 8 are separated to the sides. After installation of the part on the base elements, the pressure is supplied to the piston cavity of the hydraulic cylinder 2, the rod 3 moves up the double-sided wedge 4. acting through the rollers 6 on the two shoulders levers 5, which, around the horizontal axes 7, center the workpiece,

the movement of the two shoulders levers 5 and the stem 3 stops and when the force on the rod 3 reaches the elastic force of the spring 11, the body of the hydraulic cylinder 2 begins to move down along with single-arm levers 8 fixed to it, which by means of curvilinear grooves 9 moving along axis 10 are fed to the workpiece and lowered onto it. The forces on the rod 3 and the cylinder body 2 are aligned, and the part is finally fixed.

Claims (1)

Invention Formula A device for centering and clamping parts, comprising a hydraulic cylinder located in a housing, on the rod of which a double-sided wedge is made, designed to interact with double-arm levers that are hinged in the housing, and clamping elements made in the form of one-shoulder levers I distinguish P ( In order to simplify the design, single-arm levers are hinged on the hydraulic cylinder and have curvilinear grooves designed to interact with the axles rigidly fixed in the housing inserted into the device, The hydraulic cylinder is spring-loaded relative to the body, and the spring force is selected from the condition P4 P2 P3, where P, is the weight of the hydraulic cylinder and the clamped part; Р4 - spring force of elasticity; P - force on the hydraulic cylinder rod. Compiled by V.Nikulin Editor N.Gorvat Tehred M.Didak proofreader L. Bezkid Order 75 Circulation 659 VNIIPI State Committee for Inventions and Discoveries at the State Committee on Science and Technology of the USSR 113035, Moscow, Zh-35, Raushsk nab. 4/5 | t - - -, ji mi. m ± 1W -JW w-w. J- .Т м L -и - - - - .в - - - - - - - - Production and Publishing Combine Patent, Uzhgorod, st. Gagarin, 101 2 Subscription