SU1542774A1 - Arrangement for automatic assembly of parts of shaft-bush type - Google Patents

Abstract

The invention relates to mechanical engineering, in particular to mechanical assembly production and can be used in various industries in the automation of assembly work. The purpose of the invention is the expansion of technological capabilities by pressing the bearings on lengthy, significantly removed from the ends of the landing shafts. The device contains a ram 2 with a piston 4 and a stem (W) 3 articulated with a centering mandrel 5 and a quill (P) 6. P 6 is made with centering along X 8 and a longitudinal groove for the exit of the finished assembly, and the presser bar 15 is spring-loaded. After supplying the working medium to the piston cavity of the cylinder 2, the Sh 3 moves with the P 6 and the mandrel 5, which passes through the bore of the bearing 9 and centers the mating parts. A skim 8 grips the bearing 9 and brings it to contact with the clamping bar 15. The bearing 9 is removed from the mandrel 5 and pressed into the wedge 3 onto the shaft 21. The working medium is fed into the rod cavity and the w 3 returns to its original position. The assembled unit extends from the longitudinal groove P 6, and the bar 15 returns to its original position. 4 il.

Description

FIG. one

The invention relates to mechanical engineering, and more specifically to mechanical assembly production, in particular, to devices for the automatic assembly of shaft-hub parts, and can be used in various industries in the automation of assembly work.

The purpose of the invention is the expansion of technological capabilities by pressing the bearings on lengthy landing necks of shafts that are far from the ends.

FIG. lt shows the device

rez; in fig. 2 - the same in the final position; in fig. 3 is a view A of FIG. 1 in FIG. 4 is a view B in FIG. 3.

A device for automatic assembly of parts such as a shaft bushing comprises a housing 1 on which a press-in mechanism is installed, which is a power cylinder 2 with a hollow pressing rod 3, which is integral with the piston 4, and the centering mechanism the pressing rod 3 of the centering mandrel 5 and the quill 6 installed on the hollow of the pressing rod 3, receiving longitudinal movement from the piston 4 of the power cylinder 2 through the spring 7 and having at its front end centering juice 8, mutually acting with bearing 9.

The centering mandrel 5 is rigidly connected to the ring 10 located on the quill 6 through the pin 11, mounted in the longitudinal grooves 12 and 13 made in the hollow pressing rod 3 and the quill 6, receiving the longitudinal movement from the piston of the power cylinder 2 through the rod 14.

The workpiece is clamped to the centering pin 8 of the pinot and 6 by means of a clamping plate (i 15) mounted on the rolling pin 16 from the springs 17 having a groove 18 (figure 4) to exit the assembled assembly whose width h is larger than the diameter d of the collar 13 of the neck 20 of the shaft 21.

The device works as follows.

When supplying the mating parts to the assembly position, the hollow pressing rod 3, the centering mandrel 5 and the pin 6 are in the extreme inoperative position (Fig. 1). Ban 21 and bearing

five

five

D

five

0

0

five

0

Nick 9 is fed to the work position in the trays (not shown).

When the flow of the working medium in the right vneshkovoy cavity of the power cylinder

2 piston 4 with a pressing rod

3 move from right to left, dragging along through the springs 7 and 14 the centering mandrel 5 and the quill 6.

The centering mandrel 5 during its movement passes through the bore of the bearing 9, with its conical part goes into the central bore of the shaft 21 and stops, accomplishing with this mutual centering of the mating parts.

Upon further movement of the piston 4 with the pressing-in rod 3 of the supplement, the quill 6 with its centering 8 skims the bearing on the outer conical surface and brings it to contact with the plane 22 of the clamping bar 15 mounted on the rolling pin 16, which keeps the bearing 9 in the centered position from falling out with its further movement due to the springs 17,

In this position, the bearing 9 is removed from the cylindrical surface of the centering mandrel 5, is transferred through the end of the shaft 21, the diameters of two necks which is smaller than the diameter of the mounting neck 20 until it stops at its end face 23.

In this case, the quill 6 stops and the pressing rod 3 continues to move, with its front end 24, touching the end 25 of the inner ring of the bearing and pressing the bearing 9 onto the neck 20 of the shaft 21 (figure 2) until it stops at the shoulder 19.

The pinhole 6 continues to accompany the bearing 9 at the expense of the spring 7 during the pressing in. The spring-loaded ring 10, rigidly connected to the centering mandrel b by the pin 11, remains fixed during the pressing, while compressing the spring 14, and the pin 11 passes through the grooves 12 and 13 of the pressing stem 3 and quill 6.

At the end of the assembly process, the working medium is supplied to the rod of the cylinder, while the pressing rod 3 t the centering mandrel 5 and the quill 6 are returned to the initial position (Fig. 1), and the clamping bar 15 remains in place

as long as the assembled assembly comes out of its longitudinal groove 18, then it is returned to its original position by means of springs 17.

Then the cycle is repeated.

The use of this device for the automatic assembly of shaft-bushing parts simplifies the design of mechanisms, will allow to improve the conditions of repair and maintenance, and increase the service life.

Claims (1)

Invention Formula leg in the grooves of the rod centering the mandrel, characterized in that, in order to expand the technological capabilities by pressing the bearings on lengthy landing shaft shafts that are significantly remote from the ends, it is equipped with an installed concentric concentric rod 0 0 that can be moved relative to it by a spring-loaded quill made with longitudinal grooves and centering along the working face for contact with the outer surface The device for the automatic collection of the assembled parts, spring-loaded parts of the shaft-bushing type, containing a strap for clamping said part press-in mechanism and centriro-centering skuy quinolt, performed in the form of a force punched with grooves to exit the finished lindra with a hollow stem having a pro-knot, as well as a spring-loaded ring, longitudinal grooves, and installed in a rigidly articulated centering stem with the possibility of limited axial movement and articulated with it by means of a pin installed by the amendment through the said pin installed in the longitudinal grooves of the quill. leg in the grooves of the rod centering the mandrel, characterized in that, in order to expand the technological capabilities by pressing the bearings on lengthy landing shaft shafts that are significantly remote from the ends, it is equipped with an installed concentric concentric rod that can be moved relative to it by a spring-loaded quill, made with longitudinal grooves and centering along the skis on the working end for contact with the outer surface assembled parts, spring loaded the mandrel by means of the aforementioned pin installed in the longitudinal grooves of the quill. 2 iSWJk ButA vidb figl