RU2492985C2 - Device for assembling base member with axle - Google Patents

Abstract

FIELD: mechanics.

SUBSTANCE: invention relates to machine-assembly. Proposed device comprises actuator follower, prism for axle and axle seat in base member, all being aligned. Large-capacity bin feeder with bottom inclined to prism is arranged above the latter. Bin hopper inclined bottom represents a dual-slope member, every slope being hinged to swing and provided with plates with skews and thrusts. Rollers are arranged at actuator follower to interact with thrust areas located on both sides of the prism and with slope plates. Said thrusts define slope swing amplitude. Besides, said slopes are spaced apart to form the clearance over diameter of axles and over height to make a wall approximating the vertical. Surfaces of the slopes may be composed of three ribs.

EFFECT: continuous feed of axles in assembly.

2 cl, 9 dwg

Description

The invention relates to mechanical assembly production, in particular to technological equipment intended for the assembly of basic parts with parts installed in them, and can be used in mechanical engineering.

A device is known for assembling parts such as a shaft-sleeve (see SU 774894, B23P 19/027, 10.30.1980), containing a coaxially mounted pusher of the power drive, a prism with the possibility of coaxial placement of the assembled part in it, as well as a hopper feeder with an inclined the bottom, and the pusher is a cutoff of the flow of parts.

The disadvantages of the device are due to the complexity of ensuring long uninterrupted operation due to the presence of a small capacity feeder and the presence of a mechanism for supplying the cut-off part to the assembly axis, which complicates the design of the device.

The objective of the invention is the provision of uninterrupted supply of axle parts during their assembly with the base part.

The problem is solved by a device for assembling a base part with an axle part containing a power drive pusher, a prism with the possibility of placing the axle part in it coaxially with the pusher and an opening in the base part, and a hopper feeder with an inclined bottom, and the pusher is a cut-off of the axle parts and is additionally equipped with rollers interacting with the supporting platforms located on both sides of the prism, and the inclined bottom of the hopper feeder is gable with a gap between the slopes equal to the diameter of Aley-axis, rays are suspended on hinged swingably, spaced in height, and one of ramps forms a wall close to the vertical, and are provided with bevels slats, adapted to interact with the aforementioned pusher rollers and adjustable stops.

In addition, each slope is made in the form of 3 ribs.

In the proposed device, the pusher is equipped with rollers resting on platforms on both sides of the prism and interacting with slats with bevels mounted on hinged slopes of the bunker bottom. The bottom, in turn, is made gable with a gap between the slopes, equal to the diameter of the axle parts, in addition, one of the slopes forms a wall close to the vertical. The slopes are equipped with slats with bevels, made with the possibility of interaction with the above pusher rollers, and adjustable stops.

These signs are absent in the prototype, therefore, the proposed device has novelty.

Equipping the pusher with rollers interacting with slats with bevels mounted on hinged slopes allows the slopes to swing, and this leads to the destruction of the arch. The presence of supporting platforms on both sides of the prism eliminates the rotation of the pusher when interacting with one of the planks with bevels and allows for mismatched (i.e., one independent of the other) swinging of the slopes, and this allows to increase the tedding intensity of the axes. Performing a gable bottom also doubles the tedding intensity. The formation of a gap between the slopes equal to the diameter of the axle parts allows you to form an ordered stream of axes located above the cutter. Running ramps at different heights with the formation of one of them walls close to the vertical, contributes to a better passage of the axes into the gap between the ramps. The bevels on the slats installed on the slopes and interacting with the rollers are made with an angle of inclination to the plane of movement of the rollers (or to the plane of the supporting platforms) of not more than 30 degrees, which eliminates sharp impacts and shaking of the axes when interacting with the rollers during the movement of the pusher. The presence of adjustable stops on the slopes allows you to choose the optimal swing amplitude of the slopes, which contributes to the most effective tedding of the axes.

The execution of slopes in the form of three ribs helps to increase the reliability of work, for example, if a foreign object in the form of chips, scale and the like gets into the hopper, they fall between the ribs and do not interfere with the normal operation of the device.

Thus, new features provide new properties, that is, are essential.

Figure 1 shows the proposed device in a reduced scale, figure 2 - the same device at the time of installation of the axis in the base part, figure 3 - section aa in a 1: 2 scale from figure 1, figure 4 - the same section at the moment of contact of the rollers with the slats with bevels, figure 5 is a section bB, and figure 6 is a section BB in figure 1 in full size.

The device comprises a power drive 1 with a pusher 2, coaxially with which the axle part 3 is located on the prism 4, and an axis hole in the base part 5 installed in the fixture 6. A hopper feeder 7 with axle parts is placed above the prism 3. The bottom of the hopper feeder made in the form of two slopes 8 and 9 mounted on hinges 10, with a slope to the prism 4. The slopes are equipped with slats 11 with bevels 12 and adjustable stops 13. In the push rod 2, a hole is made in which the axis 14 with rollers 15 is mounted 15. On both sides prisms are located supporting pads 16. One the slope forms a wall 17 close to the vertical.

In addition, the slopes are made in the form of three ribs 18, forming an inclined plane 19 and the wall 17, close to the vertical.

The device operates as follows.

The base part 5 is assembled in a separate device (not shown) with the satellites 20, and to hold them, a technological mandrel 21 is introduced, made according to the diameter of the hole in the base part and having an elongated guide part protruding beyond the base part and ending with a handle.

Thus assembled, the base part 5 is installed in the device 6, which provides the desired position of the axis of the hole in the base part in height, and the elongated part of the technological mandrel 21, extending beyond the base part, lies in the prism 22 and provides an angular orientation of the hole in the base part. After this operation, the pusher 2 of the power drive, the assembled part-axis 3 lying in the prism 4, and the hole for the axis in the base part are located on the same axis.

The power drive 1 is turned on, the pusher 2 starts moving towards the base part 5, grabs the axle part 3 from the prism 4, and it, shifting, pushes the technological mandrel 21 from the base part onto the platform 23, where it remains until the next assembly cycle. The pusher 2, shifting the part-axis 3 along the prism 4, takes its place and cuts off the receipt of the upstream parts-axes on the prism. As the pusher 2 moves, the rollers 15 roll along the supporting platforms 16 and, upon entering the zone of the hopper feeder 7, interact with the bevels 12 made on both sides of the planks 11. In this case, the slopes 8 and 9 rotate on hinges 10 and stir up axis parts 3 located in the hopper feeder. The implementation of the same bevels on both planks 11 provides a synchronous swing of the slopes, the lower position of which, and therefore the swing amplitude, determines the stops 13.

When the power drive is returned to its original position, the rollers 15 again interact with the bevels of the slats 11 and the slopes 8 and 9, and, consequently, the tedding of the axle parts, are rotated again. When the pusher 2 leaves the hopper zone, the next axle part takes its place.

The operator removes the assembled unit from the device, picks up the technological mandrel 22 and begins a new assembly cycle.

The use of the invention improves the reliability of the hopper feeder due to the uninterrupted supply of axle parts, eliminates operator intervention in the process of feeding axle parts, and this helps to increase productivity in assembly operations.

The proposed device is in pilot industrial operation on an assembly machine (equipment code 614.993.33) in workshop 33-7 of the Mechanical Assembly Production of VAZ.

Claims (2)

1. A device for assembling a base part with an axle part, comprising a coaxially mounted pusher of the power drive, a prism with the possibility of placing the axle part in it coaxially with a pusher and a hole in the base part, and a hopper feeder with an inclined bottom, the pusher being a cutoff of the parts axes, characterized in that the pusher is equipped with rollers interacting with bearing pads located on both sides of the prism, and the inclined bottom of the hopper feeder is gable with a gap between slopes equal to a meter of axle parts, the slopes are suspended on the hinges with the possibility of swinging, spaced in height, one of the slopes forming a wall close to the vertical, and equipped with slats with bevels made to interact with the above pusher rollers and adjustable stops. 2. The device according to claim 1, characterized in that each slope is made in the form of three ribs.

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