SU1532271A1 - Arrangement for press-fitting bushings with side hole into vehicle steering knuckles - Google Patents

Abstract

This invention relates to a mechanical assembly production, in particular, to devices for pressing in sleeves with a side opening in the knuckles of automobiles. The purpose of the invention is to improve the reliability and quality of the assembly. For this purpose, the device comprises a vehicle 2 mounted on the base 1 with a satellite 3 for moving the steering knuckle 4 and two power cylinders 5 with hollow pushers inside which rods are mounted associated with rotational drives for rotating the embed sleeves. The orientation of the sleeves is carried out by means of an orientation mechanism in the form of locks of axial and angular position. The angular position lock is made in the form of a driving catcher with a one-sided wedge whose bevel is directed in the direction of rotation of the rod. Between the press-in mechanisms, there is a portal carrying a wedging mechanism and calibration matrices. The wedging mechanism includes plungers with centering sector skies on the lateral surface and base bearing surfaces on the end face. The sleeves are pressed in on both sides alternately, while ensuring precise orientation of the assembled parts. 5 il.

Description

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The invention relates to a mechanical assembly production, in particular, to equipment for assembling parts such as split sleeves with other parts, for example, with a knuckle of a KAMAZ automobile.

The aim of the invention is to improve the reliability of work and the quality of the assembly by ensuring the preliminary orientation of the steering knuckle, increasing the orientation accuracy of the pressed-in sleeves and eliminating the over-pressing of the sleeves.

FIG. 1 shows the device, a general view; in fig. 2 - the same. plan view; in fig. 3 - section A - A in FIG. 2; in fig. 4 shows a section BB in FIG. 3; in fig. 5 is a section through BB in FIG. four.

The device for squeezing the sleeves with a side opening into the steering knuckles of the car contains the base 1 with the vehicle 2 mounted on it with the satellite 3 for moving the steering knuckle 4, as well as the pressing mechanism in the form of two power cylinders 5 with hollow pushers 6 inside which the rods are located 7 with cams 8 connected through rotational gears 9. The rods 7 are equipped with spring-loaded fingers 10 for rotating the embed sleeves 11.

To increase the service life of the fingers 10, wear compensators are designed in the form of a spring 12, the rigidity of which is equal to the rigidity of the working spring 13, made with a compression regulator in the form of inside 14.

The device is equipped with an orientation mechanism for the sleeves And, made in the form of an assembly mounted perpendicular to the axis and connected to the power cylinder 15 of the clamp of the angular position of the sleeves in the form of a spring-loaded catcher 16 and connected to the power cylinder 17 of the lock 18 of the axial position of the sleeve. The driver 16 is made in the form of a one-sided wedge, the bevel 19 of which is directed in the direction of rotation of the rods 7.

Calibration arrays 20, designed as discharge bits, are used to calibrate the sleeves to accelerate the disassembly process when the sleeve is jammed. Calibration matrix is installed on the receiving sleeve 21, having juice 22 centering on.

The device includes a wedging mechanism in the form of a housing 23 mounted on a portal 24 mounted on the base 1, and spring-loaded support fingers made in the form of plungers 25 with centering sector 26, providing accurate centering of the steering knuckle 4.

26 centering sectorial skulls are centered on the axes of the plungers 25, and their top 10

Seats 27 are base surfaces when pressing in sleeves.

The wedging mechanism is designed to pre-orient the steering knuckle 4 with an accuracy of 0.5 mm for receiving axial loads by the flanges 28 and the ends 27 of the sector trains 26 and is equipped with its own hydraulic actuator 29, which allows you to create the necessary forces when inserting sectors into the eye of the fist 4

Trays 30 are intended for feeding the sleeves into the assembly area.

The device works as follows.

Trays 30 are loaded with sleeves 11, a portal manipulator 5 is installed in the satellite's nest 3 two steering knuckles 4, which are then fed to the power cylinders 5 by the vehicle 2.

During the feeding of the knuckle 4 with the help of the wedging mechanism, its initial orientation with an error of 0.5 mm occurs. The vehicle 2, when feeding the steering knuckle 4, provides an approximate orientation of the axes of the holes for the pressed sleeves 5 11 relative to the axes of the holes of the calibration matrices 20. A command is given to the wedging mechanism, the hydraulic actuator 29 is actuated and its 26 sector axes enter the holes of the steering knob 4 , there is an exact basing of the holes for the pressed sleeves 1 I relative to the axes of the holes of the calibration matrices 20.

At the same time, the power cylinders 5 move the rods 7, which grip the sleeve 11 from the trays 30 and move up to the latch 18 of the axial position of the sleeve. The power cylinder 15 releases the safety device 16, which rests on the sleeve 1 1. At the same time, the gears 9 turn on and rotate the rods 7, which with the aid of a spring-loaded pin 10 capture the sleeve T1 and rotate it until the spring-loaded safety catch 16 falls into the side opening of the pressed sleeve 11. Due to the one-way wedge of the catcher 16, directed along the rotation of the sleeve 11, the safety device sinks in one turn of the sleeve 11.

Gears 9 stop. Power cylinders 17 and 15 and catchers 16 and latches 18 release the sleeves 11.

The left power cylinder 5 is engaged, the pressure in the hydraulic actuator 29 is relieved. The rod 7 moves the sleeve 11 into the receiving, sleeve 21, where it closes along the cutting line, then pushes through the calibration matrix 20 and is pressed into the hole of the steering knuckle 4.

In this case, the cams 8 act on the end 27 of the plunger, which is the basic

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surface, pushing the plungers out of the holes, closing the force of the housing 23 IU. wedging

The rod 7 remains in the extended position so as not to disturb the base of the part.

After pressing in the left sleeves, a command is issued to press in the right sleeves, after pressing which is completed, a command is given to retract the rods 7 with power cylinders 5. The vehicle 2 moves to the loading and unloading area, where the manipulator removes the finished components and installs new

Formula and sad

A device for pressing in sleeves with a side opening in the steering knuckles of a car, comprising a vehicle with a satellite mounted on the base for moving the steering knuckles into the assembly area, trays for feeding the sleeves, a mechanism for pressing them into Bibie coaxially arranged and facing each other to one another the axial movement actuators, the mechanism of rotation of the bushings in the form of pushers installed in the cavity and associated with the rotation actuators of the rods with spring-loaded fingers is located

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perpendicular to the axis of the rods, the mechanisms of orientation of the bushings in the form of perpendicular to the axis of the assembly and associated with the drives of the axial movement of the retainers of the axial and angular positions of the bushings, the last of which is designed as a spring-loaded catcher mounted between the pushers of the portal pressing mechanism, on vertical racks the calibration matrices are installed with receiving sleeves having centering along the skid, as well as the wedging mechanism in the form of a housing placed on the cross-section of the portal, A spring-loaded support fingers are installed coaxially with pushers, with a drive for their movement, characterized in that, in order to increase the reliability of work and build quality, the wedging mechanism is fixed on the portal, the spring-loaded support fingers are made with centering sector wires located on their lateral surface, and basic operative surfaces for the pressed sleeves are on the face, the safety device is made in the form of a one-sided wedge, the bevel of which is directed in the direction of rotation of the brush, and the spring-loaded fingers made with a wear compensator in the form of a spring, the stiffness of which is equal to the rigidity of the working spring, made with the compression adjuster.

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Claims (1)

Claim A device for pressing bushings with a side hole into the steering knuckles of cars, comprising a vehicle mounted on the base with a satellite for moving into the assembly zone of the steering knuckles, trays for feeding the bushings, a mechanism for pressing them in the form of hollow pushers coaxially arranged and facing the working ends one to another drives' of their axial movement, the rotation mechanism of the bushings in the form of pushers installed in the cavity and connected to the rotation drives of the rods with spring-loaded fingers located perpendicular to the axis of rod mechanisms orientation bushing as mounted perpendicular to the assembly axis, and associated with actuators axial pere5 displacements clamps axial and angular position of the sleeves, the latter of which is designed as a spring-loaded safety device mounted between the plunger mechanism pressing the portal, on which there are mounted cal ¹⁰ uprights alignment matrices with receiving bushings having centering belts, as well as a wedging mechanism in the form of a housing located on the cross member, in which coaxially mounted to the pushers, spring-loaded support fingers are mounted with a drive for moving them, characterized in that, in order to increase the reliability of operation and assembly quality, the wedging mechanism is fixed to the portal, the spring-loaded support fingers are made with centering sector belts located on their side surface, and the base operative surfaces for the pressed bushings are on the end, the catcher is made in the form of a one-sided 25 wedge, the bevel of which is directed in the direction of rotation of the rod, and the spring-loaded fingers are Nena wear compensator with a spring stiffness, which is a working spring stiffness performed with a compression controller. Aa FIG. 3 — I ^In FIG. H Β-β Φιαζ.5 Compiled by N. Pozhidaev Editor N. Horvat Order 8043/21 Tehred (4. Veres Corrector V. Kabatsiy Circulation 894 Subscription VNIIIPI of the State Committee for Inventions and Discoveries under the State Committee for Science and Technology of the USSR 113035, Moscow, Zh - 35, Raushskaya nab., 4/5 Production and Publishing Plant "Patent", Uzhhorod, st. Gagarina, 101