SU402479A1 - HYDRAULIC MECHANISM FOR CABLE TIPS TOOLING - Google Patents

Description

one

The invention relates to the field of assembly of permanent connections.

A hydraulic mechanism is known for pressurizing cable lugs, comprising a hydrochannel housing in which a power cylinder is installed with a spring-loaded piston located in it with a rod, at the end of which a working tool is fixed, mainly a punch, as well as a spring-loaded bypass valve arranged in the piston, interacting at the end of the stroke piston with an emphasis located in the power cylinder concentric piston.

In the known device, the piston stroke is constant for crimping cable lugs of the same type of dimensions.

In the proposed mechanism, the stop is made in the form of a sleeve mounted inside the piston with a needle acting on a relief valve at the end of the stroke of the piston, while the sleeve is connected by means of locating pins with a union nut mounted concentrically to the cylinder body. Such a structure will ensure the regulation of the piston stroke and the crimping of the cable on; hechny of various standard sizes.

The design of the proposed hydraulic mechanism is shown in the drawing.

The hydraulic mechanism comprises a building) with 1 hydroxleins 2, in which a Boii cylinder 3 is installed with a spring-loaded piston 4 disposed therein and a rod connected to the holder 5 of the working tool 6, for example a nuance. In the piston 4 is placed a spring-loaded bypass valve 7, which interacts at the end of the stroke of the piston with an emphasis in the form of installed inside

piston with the ability to move the sleeve 8 with the needle, acting on the bypass valve 7, the sleeve 8 is connected by means of the mounting pins 9 with a cap nut 10 mounted concentric with the Cornus

power cylinder. Suction 11 and discharge valve 12 are connected through a plunger 13 to the lever 14.

The mechanism works as follows. By swinging the lever, which moves the plunger 13 into reciprocating motion, the working fluid (oil) is pumped from the oil cylinder 15 to the bottom of the power cylinder 3, into which the oil passes through the suction and discharge valves 11 and

12. Piston 4 two sets until the bypass valve, in the needle, opens. Upon further swing of the lever, the oil begins to flow from the power cylinder 3 through the overflow valve 7 into the canals 16 and the oil cylinder 15. The magnitude

The stroke of the piston 4 is adjusted by means of a sleeve 8. The sleeve moves inside the piston rod 4 with a cap nut 10, mounted on the threads on the housing and the installation pins 9 connected to the sleeve. As the nut rotates, the pins abut the wall of the annular groove machined from the inside the nuts move straight and move the sleeve 8.

Two slots are made to prod the pins inside the stem and prevent them from rotating in the stem. Their length is equal to the maximum stroke of the pin plus the diameter of the pins. The installation of the required stroke length is made according to the risks of the pointer 17 moved by the cap nut 10, for which an annular groove is provided on the outside.

A valve is installed in the press (conventionally not shown in the drawing), by means of which the oil is transferred from the power cylinder to the oil when the piston returns under the action of the spring to its original (initial) position after the end of the compression molding.

Subject invention

A hydraulic mechanism for pressing the cable lugs, comprising a hydrochannel housing, in which a power cylinder is installed with a spring-loaded piston located in it with a rod, at the end of which a working tool is fixed, mainly a punch, as well as a semi-spring-loaded bypass valve located in the piston, acting at the end of the working Piston stroke with an emphasis located in the power cylinder of the piston piston, characterized in that, in order to ensure the adjustment

the working stroke of the piston and opressovkn ferrules of various sizes, the stop is formed as a rod mounted inside the piston voz.mozhnostyu peremeschepi with the needle hub, vozdeystvuyup1e11 pas nerepuskpoy valve at the end of the working stroke norshn, wherein vPlka bonded through ustapovochnH pins with nakndnoy nut mounted conceptual to the body of the power cylinder.