SU719813A1 - Rotatable stand for machining assembled unit - Google Patents

Description

.- .... The invention relates to a machine tool, namely to auxiliary devices for precise installation of an assembled unit.

Apparatuses for processing assembled units are known in which the cutting stand is turned around, leveling or assembling is carried out in one position of the unit being cut, and its machining is done in another position, which is determined by the boring machine used.

The disadvantages of the known devices vl5pots their large size and weight. . In order to accurately set and stabilize the stand by creating a constant and stable force of the frame against the fixed stop, a hydraulic balancer is inserted into the hydraulic actuator, consisting of a vertically mounted hydraulic cylinder, on the piston rod of which the load is created This pressure, and.

the lower cavity of the hydraulic cylinder is connected with the hydraulic drive of the stand rotation.

FIG. 1 shows a swivel stand for cutting openings for a spindle hinge in the center-section beam, general view; in fig. 2 - the same, top view; in fig. 3 - hydraulic balancer of the swivel part of the stand; in fig. 4 - hydro-scheme of the rotary part of the stand.

The rotary stand consists of the idler of the rotary frame 1 of the fixed stops 2, serving to fix the rotary frame in the working position, the hydraulic actuator of the rotation 3, the hydraulic balancer 4 and the machines 5.

Claims (2)

The swivel frame 1 serves to set the assembled unit 6 to the working position for its machining. Hja rotary frame mounted thrust pads 7 for fixing the frame in the working position, as well as stop 8. I; On the fixed stops 2, the support platforms 9 and the electric tip 10 are installed, which include a hydrobalancer 4 from the stop 8 in operation. connection 12 with a pivot frame, 13 pivots of the frame, fixed in the end stationary supports 14. Hydro-balancer 4 is used for balancing and setting the pivot frame 1 in the working position by the calibration force to epodvizhnym stops 2 and consists of a hydraulic cylinder IS, available in sub ShSheShSh Ver YKyL1 iom Pos piston rod 16 which is fastened loads 17, creating in the lower cavity gidrtsilindra opro fief n1yoe constant pressure. The crane 18 applies pressure from the pump to the interpiston pisses of the hydraulic hydraulics, the electrohydraulic valve 19 disconnects them from the pressure of the hydraulic pump and connects to the lower cavity of the cylinder 15, the valve 20 produces a stop of the rotary frame during its removal and lowering. The installation of the stand relative to the boring machines is as follows. The stand is rotated by a hydraulic pivot drive. The valve 18 is turned on, which in the bbie pump delivers pressure from the pump half of the hydraulic cylinders 11, the extension rods of which act through) the hinge 12 on the frame 1, turning it along the shaft 13 of the axis of rotation 13, strengthened in fixed end supports 14, mounted on the frame 1. The hydrobalancer 4 is charged at the same time, i.e., then the pin 16 is moved to the uppermost 11 ° 6 of the not necessary until the reference; pads 9 fixed stop 2 on DO-20 mm stop 8 of the pivoting frame presses the electric trailer 10 located on the fixed stop 2. The signal of the electric trailer 10 switches the electric hydraulic valve 19, the latter detaches the power cavities of the hydraulic cylinders 11 from the hydraulic pump and connects them with the lower cavity of the hydraulic cylinder 15 of the hydraulic balancer 4, forming a closed hydraulic volume. The upper cavity of the hydrocylinder 15 is permanently connected to the liya drain. 17, mounted on the piston rod 16 of the hydraulic balancer 4, creates a certain constant pressure in the lower cavity of the cylinder 15 of the hydraulic balancer, which, acting on the pistons of the power hydraulic cylinders 11, provides a definite constant pressing force of the frame 1 to the supporting platforms 9 of the fixed stops 2. Invention Steeral swivel for machining an assembled machine, having a STANDARD LYUGULLY axis of rotation of the frame, with a machine placed on it, which is turned with a hydraulic drive and fixed to: a fixed stop, relatively stationary metal-cutting machines, different for the purpose of precise installation and stabilization of the position of the stand due to the creation of a constant and stable force of pressing the frame against the fixed support, in the hydraulic actuator turn A hydraulic balancer consisting of a vertically installed hydraulic cylinder, on the piston rod of which a load is suspended, which creates a constant pressure in the hydrocylinder cavity, and the lower cavity of the hydraulic cylinder is connected to a hydraulic drive. house turning booth. Sources of information taken into account during the examination 1. USSR Author's Certificate No. Збб1бЗ, КЛ. B 23 B 39/02, 1968. S KSfS SStiLif 4--: i;: 5ai: i X 2 7/7 ///// L W / 7 /. § y / zz // 7 ///////. Ы20 FIG.