SU1388256A2 - Apparatus for assembling shaft-and-sleeve articles by press-fitting - Google Patents

Abstract

The invention relates to the field of assembly production, to devices for assembly by pressing. The goal is to expand the technological capabilities by providing the assembly of key connections. The covering and covering parts — the drum casing (B) 27 and the shaft (C) 28 — are mounted on prismatic roller bearings. Then, the angular orientation mechanism B 27 turns on, which moves the mandrel 11 with the key 12 into the hole of this part. The carriage 4 is moved together with B 28 by means of the power cylinder 14 to the opening B 27, wherein B 28 is fixed on supports in the angular position with a retainer. After the B 28 is gripped by the conical centers 13 and 19, the pressing cylinder 18 is turned on. The 28 is pressed into the hole B 27, pressing the retainer upwards and the mandrel 11 to the left. 6 sludge. with (L

Description

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The invention relates to the assembly industry, namely to devices for assembly by pressing.

The purpose of the invention is to expand the technological capabilities of the device by providing the assembly of the shaft and sleeve with a keyed joint.

FIG. 1 shows the proposed assembly device, general view; in fig. 2 shows a section A-A in FIG. 1 in FIG. 3 shows a section BB in FIG. in fig. 4, 5 and 6 - the sequence of operations in the process of assembling the sleeve (drum) with the shaft.

The device contains fixed stand 2 mounted on the base 1 and guides 3 along which the drive carriage 4 moves on the rollers 5 with the console-swivel table 6 and the fixture 7 of the carriage 4 relative to the base 1.

On a fixed rack 2, a bracket 8 is installed with a stop 9 for the drum housing (sleeve) and its angular orientation mechanism, made in the form of a power cylinder 10 and a mandrel 11 connected to its stem. A key 12 is installed on the side surface of the mandrel parallel to its longitudinal axis, and a spring-loaded conical center 13 is mounted on the end of the mandrel. A guide hole 8 is made in the rack bracket 8 with a keyway in which the mandrel 11 is mounted with the possibility of axial movement. drive cylinder is also installed

14, roller prismatic support

15, in which parallel grooves 16 of different depth are made depending on the diameter of the drum casing for accommodating support rollers 17 therein.

On the cantilever rotary table 6 there is a press-on movable power cylinder 18 with a spring-loaded cone center 19 at the rod end, a movable stop 20, a cradle for the shaft being requested, made in the form of a prismatic support 21 consisting of supporting rollers of different depths 22 arranged in parallel grooves 22 23 under the shaft. On the console-on-turntable 6 there is also a mechanism for angular fixation of the shaft, made in the form of a rotatable L-shaped bracket 24 and placed

on it is a spring-loaded retainer 25 mounted on a rotary axis 26 and having an internal cylindrical working surface corresponding to the surface of the pressed-in shaft,. and a longitudinal keyway, as well as a chamfer, made from the side of the press-fit ram.

The device works as follows.

Before starting, the support rollers 17 and 23 are installed in the grooves 16 and 22 of the prismatic supports 15 and 21, corresponding in depth to the diameters of the drum casing 27 and the pressed-in shaft 28, the bracket 24 is retracted from the shaft installation zone 28. Then the drum 27 casing is mounted on the support rollers 17 , and the shaft 28 assembled with the key 29 is placed on the support rollers 23 by the untreated surface. The bracket 24 returns to its original position, the spring-loaded retainer 25 is mounted on the machined surface of the shaft journal 28 to the position The insertion of the key 29 of the shaft 28 into the key groove of the latch 25, which is pressed against the shaft 28 by a spring, is fixed in the operating position (FIG. 4)

The drive cylinder 10 moves the mandrel 11 with the key 12 to the right position until the mandrel 1 enters the hole and the keys 12 into the key groove 30 of the hub of the drum body 27, which is thus fixed in the working position (Fig. 4),

The drive cylinder 14 moves the carriage 4 along the guides 3 to the left position until the end of contact of the shaft 28 with the cone-shaped cone center 13, and then the position of the carriage 4 is fixed by means of the clamp 7. The pressing cylinder 18 is brought to the right end of the shaft 28 until the end of the shaft 28 contacts with a spring-loaded conical center 19 (FIG. 4). The rear end of the cylinder 18 of the cylinder then abuts against the adjustable stop 20. The spring-loaded conical centers 13 and 19 enter the front center holes of the shaft 28, clamp it, lift up from the support rollers 23, resulting in the alignment of the axes of the drum housing 27 and the shaft 28 and the alignment of the shaft key 29 with the key groove of the drum housing hub 29

27. Then, the shaft 28 is pressed into the drum casing 27, while the rod of the power cylinder 10 is pressed to the left position with the mandrel 11 (FIG. 5),

The carriage A is retracted to the initial position by the cylinder 1A, the rods of the cylinders 18 and 10 are also retracted to the initial position (Fig. 6).

The cantilever rotary table 6 is rotated 90 ° to facilitate the installation of other components, such as a bearing assembly and a cover (not shown). For ease of assembly, if the cover is attached to the body of the drum 27, the latter can be rotated around a horizontal axis on the support rollers 17.

The assembled product is removed from the assembly area, and the device is loaded with new parts.

Claims (1)

Invention Formula A device for assembling the pressing-in of parts such as a shaft hub according to ed. St. No. 1184638, about tl and h and y Fi. 2 It is so that, in order to expand technological capabilities by providing shaft assembly and bushings with a keyed joint, it is equipped with a bushing angular orientation mechanism, made in the form of a power cylinder, a cylindrical mandrel with a key and spring-loaded a conical center connected to the power cylinder rod and a guide hole with a spline groove made in a fixed rack, an angular fixing mechanism of the shaft, made in the form of a rotatable L-shaped bracket located on the console rotary table with a spring-loaded lock with a cylindrical work surface having a longitudinal a keyway and a chamfer made from the side of the press-in power cylinder, as well as a spring cone center mounted on the end of the rod of the press-down power cylinder, while the mandrel is installed in the guide hole of the fixed rack with the possibility of axial movement. --24 3 FIG. five 28 27  ////// X / 7/7 /////// Z