SU870059A1 - Self-setting support - Google Patents

Description

(54) SELF-INSTALLING SUPPORT

I

The invention relates to mechanical engineering and can be used in devices used to install parts when machining them on machine tools to increase rigidity and stability of fastening.

A self-adjusting bearing is known, comprising a housing, a spring-loaded support rod, a power cylinder with a spring-loaded piston, and a rod for fixing the support rod D1.

However, the operation of a known self-aligning support is coupled with the need to connect to a pressure source outside the device.

The purpose of the invention is to eliminate the connection of the support with an external source of pressure and ensure the autonomy of its operation.

In order to achieve this goal, the support is equipped with a hydraulic booster, a compensation cylinder and mounted coaxially with the support rod and a movable slide valve with a contact head spring-loaded relative to the housing, the outer surfaces of the support rod being in the form of plungers and matching the compensation cylinder and the hydraulic booster cylinder, in the support housing and support the rod has channels and holes intended to connect the compensation and power cylinders, and the hydraulic booster and the power cylinder are connected dy are formed in the housing a calibrated opening support.

15

FIG. 1 shows the proposed self-aligning support in the working position and a longitudinal section in FIG. 2 - the same, in the initial position.

20

Claims (1)

The body of the self-aligning support consists of the lower part 1, the middle 2 and the upper 3 rings and the cover 4 fastened with bolts 5. In the lower part 3, there is a hydraulic booster comprising a cylinder 6, a piston 7 and a package of belleville springs 8, which squeezes the pins 7 into the upper position . The cylinder 9 is coaxial with the hydraulic booster cylinder, into which plunger 10 is placed, formed on supporting rod not 11, pressed upwards by spring 12. Support rod 1 has plunger 13 in the middle part, placed in compensatory cylinder. 14, in the upper conical part 15 and the coaxial hole made to the skvoam, in which the slide valve 16 is movably mounted, pressed upward by means of a spring and a cap 18. The adjusting screw 19 with nut 20 is used for height adjustment. In the lower part, the spool 16 has a groove 21, which communicates through the holes 22, 23, 24 and channels 25 and 26 above the back cavity of the compensation cylinder 14 with the sub piston cavity of the power cylinder 27, in which the piston 28 and the rod 29 are placed, pressed into the lower position by a spring 30. By means of a calibrated orifice 31, the cavity of the cylinder 27 communicates with the over-piston cavity of the hydraulic booster. A bore is made in the upper ring 3, in which the sleeve 32 is opened, pressed down by the spring 33, which interacts with the upper cone through the tapered rollers 34 with the conical part 15 of the support rod 11 and the lower cone with the help of balls 35 - with the conical part of the rod 29. All working cavities cylinder filled with grease oil. In the initial position, the spool 16. Is lifted and the groove 21 through the holes 22, 23, 24 and the channels 25 and 26 communicates the cylinders 27 and 14. The supporting rod I1 is lifted by the spring 12 up to the stop into the cover 4, while between the rollers 34 and the tapered in part 15, a gap g is formed, allowing the rod to move downwards. The sleeve 32 and the piston 28 with the rod 29 pressed down, and the piston 7 of the hydraulic booster raised up. When the part 36 is lowered onto the support, the valve 16 initially lowers to the stop at the end of the rod 11, and the hole 23 will overlap, separating the cylinders 27 and 14. Subsequently, the valve 16 will move together with the rod 1 1. and the plunger 10, which will compress the oil underneath it, with the piston 7 going down, compressing the package of springs 8. Getting through the calibrated orifice 31 into the cylinder 27, the compressed oil with a time delay will raise the piston 28 and the rod 29 up. The latter through the balls 35, the sleeve 32 and the rollers 34 will fix the rod 11 in the installed position. When removing the product from the support, the spool 16 rises up and connects the cylinders 27 and 14 with the groove 21. At the same time, the oil displaced by the spool 16 when it is lowered, refills the cylinder 9, and the oil displaced by the plunger, together with the spool will flow into the over-piston cavity of the compensation cylinder 14. As a result, the pistons 7 and 28 of the hydraulic booster and the power cylinder return to their original position and release the support rod 11, which is returned to its original position by the spring 12. In connection with the autonomy of work, the proposed support can be applied to any metal cutting equipment without the need to connect an external pressure source to it and to control its operation. These qualities provide support structures wide versatility and reliability in the process of operation. The support provides an increase in productivity. The best application of the proposed support can be found in heavy engineering enterprises, where large-sized tons of human parts are used. Invention Self-supporting bearing, comprising a housing, a spring-loaded support rod, a power cylinder with a spring-loaded piston and a shaft dp for fixing the support rod, characterized in that, in order to simplify the design and ensure the autonomy of operation, the support is equipped with a hydraulic booster, a compensation cylinder and a coaxially mounted the supporting rod and the subcapsule with a movable slide valve with a contact head relative to the body, the outer surfaces of the supporting rod are made in the form of plungers and matching