SU916220A1 - Apparatus for mounting piston rings - Google Patents

Description

The invention relates to the automation of assembly processes and may find application in various branches of technology, in particular in mechanical engineering, automotive, etc.

A device for mounting piston rings on the base member comprising a store for the rings placed on the means of the table for base pieces, a column on which the actuator re · ¹ displacements of the pusher, made in the form of bit collet tapered mandrel with a skirt and post for basing pusher and mandrel, and the pusher and mandrel are aligned with the possibility of relative movement [1].

Odncho device has low productivity and does not exclude manual labor during assembly operations.

The purpose of the invention is to improve performance with the exception

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breakage of the rings during their installation on the piston, as well as improving the quality of the assembly.

This goal is achieved by the fact that the device for installing the piston of the ⁵ outer rings according to the number of working positions of the table is equipped with additional magazines for rings, mandrels and pushers having conical surfaces, each pusher

¹⁰ and the rod is rigidly connected to each other and kinematically connected to the drive, and each ring store is connected to an additional one installed on

₅ column driven, with the store and mandrel coaxial.

Mandrels are equipped with unequal skirts.

On fmg. 1 shows the device section; in fig. 2 is a section A-A in FIG. in fig. 3 “view along arrow B in FIG. one. '

The device contains a vertical column 1, which moves

3 916220 4

cylinder 2. The piston 4 is fixed to the column 1 by nuts 3. The cylinder 2 is rigidly connected to the cylinder 5, in which the piston 6 moves with the fixed crosshead 7, the piston 6 is fixed by the key 8, which opens the keyway of the piston 4. From the _5th gate, C slides traverse 7 connected rod 9, bearing in turn, the pushers 10, made in the form of collet. On the cylinder 2 are fixed means for supplying piston rings 11, made in the form of sleeves 12. In sleeves 12, a mandrel 13 is screwed, having a cone inside, along which the pusher 10 slides when moving the rod 9 · The pusher is in two grooves made in mandrel 13. The presence of the grooves makes it possible to fix the pusher 10 ₂ about from turning away.

On the column 1 in the bearings mounted rotary table 14, receiving movement through the ratchet wheel 15 from the drive. On the table 14, there are ₂₅ satellites 16, into which the basic parts, the pistons 17, are inserted and thus centered.

The device works as follows. _thirty

In the initial position, cylinder 2 is in the upper extreme position, pistons 17 are inserted into satellites 16, piston rings 11 are put on sleeve 12. Filling in sleeve 5 and _{5 is} done so that the lower ring is flush with the lower edge of the mandrel 13. The supply of energy is activated cylinder 2 into the lower cavity, the cylinder moves _4θ down, together with bushings 12 and the last mandrels 13 cover the pistons. Turns on the supply of energy in the upper cavity of the cylinder 5 and the piston 6, and accordingly, the rod 9 and the pushers 10 are moved down. The pusher 10 begins to slide along the cone of the mandrel 13 and expands the ring, at the same time pushing the underlying by the amount of feed equal to the thickness of the ring. Lower nipple ring- ⁵⁰

nods from the mandrel 13 and under the action of springback falls into the groove of the piston, and in its place will move the next ring. Switching the supply of energy to other cavities, the cylinders rise up, the rod 9 rises, the pusher 10 contracts, falls into the slots and passes the following rings. Table 14 driven rotates, moving the pistons under the following mandrel and the cycle repeats.

The proposed device is characterized by high performance with the exception of breakage of the rings in the process of their installation on the piston and allows you to automate the assembly processes.

Claims (2)

Claim 1. Device for installing piston rings on the base part, containing means for supplying the base parts, means for accommodating the base parts placed on the table, a column on which a drive for moving the pusher, made in the form of a split collet, a conical mandrel with a skirt and a bar for basing are located pusher and mandrel, and the pusher and mandrel are coaxially positioned with the possibility of relative movement, which means that, in order to increase productivity and improve the quality of assembly, it is equipped with olnitelnymi mandrels and pushers, each pusher rod and are rigidly interconnected and kinematically connected with the drive of the pusher, and the means for feeding the base parts mounted coaxially mandrels. 2. The device according to claim 1, characterized in that the mandrel is equipped with uneven skirts.