SU106510A1 - Dividing machine - Google Patents

Description

Dividing machines with two reversible detachable spaced one above another,: 1 running screws, from ivOTOp.ux, the upper one carrying the workpiece, loose, loosely connected; it is relative to the table, moved by itself; k) n, the bed with the use of the incisal carriage, not on the basis of the traverse, is known.

A distinctive feature of a single preload, which is of the same type, is the traverse syabenia, except for the tracks, with rolling friction to absorb the main load from the incisal carriage, with additional corrective friction and sliding, designed to compensate for the errors of the main guides. Such an embodiment of the maschina ensures the achievement of the exact linearity of scribbles on a large length, which is especially common when applying divisions to the products of the titling of the originals of the printing rasters.

The proposed dividing machine is shown schematically in the FNG. 1 in a look; in fig. 2 separately shown cross section of the double table of the machine; in fig. 3 given the cross section with a carriage.

The raster blank is placed on the table /, without interruptions, on the right, 1 of the bed 2 at the division level) 1 of the mechanism 3, secured 151 (;; this periodic supply of the root TCiiK is for the interval between the risks. Risks are applied by a cutter strengthened in the carriage 4 moving along the guide trackspcbi .5 installed above the bed 2 perpendicular to the direction of shifting the table /. The moving of the string 4 takes place under the action of an endless steel band attached to the drum 6. The stroke is inserted when the carriage 4 moves in one .m direction, the reverse movement of the carriage 4 the raised cutter t, and the time of the reverse movement is used to move the section / dividing schag on.

In order to reduce the effect of non-stability, the conditions of friction are the amount of intervals for the movement of the table (taking into account the large weight of the table,

the blanks are ramol (up to LJ), the table / is made in the form of a double table (Fig. 2), consisting of tables 7 and 6 arranged one above the other. The lower table 7 is not erecting along 1 direction of the bed on the rollers 9 and guided in the horizontal plane of the slippers schilpg babbit slider 10, rabozhayuschimi in oil on cast iron shabirovannogo plane. The upper table 8 lies on the lower side of the three balls // placed on the prism 12 B, so that it has free nepCMCineHise (within small limits) relative to the lower table along the axis of the machine. Both tables are intermixed by two iresaiii-icHMbix CHHxpoiUio operating lead screws 13 and 14, with high accuracy requirements placed only on the upper etol screw. The purpose of the table is 7-precise orientation of the upper table in the horizontal and vertical planes. However, the instability of the values of the longitudinal movement of the table, which may arise due to friction in the direction, is not transmitted to the table 8, whose longitudinal position is determined only by the potential TO HJIJIM VII volume 14.

The precise screw of the upper CTO / IJI has a correctional effect, a |; perfect in the form of a differential screw, corrective, its axial position of the screw of the upper table. The corrective ruler is mounted on the upper sidewall and is moved along with it.

For the purpose of furthering the exact straightness of the strokes over a large length, the narabling carriages 4 of the cutters are made as follows. Traverse b has four guides-two main 15 and 16 with working planes 17, 18 and 19 and two corrective guides 20 and 21 with working planes 22 and 23. Two pairs of rollers 24 are installed along the edges of the carriage 4. Connected to the carriage body by an elastic suspension, they imitate the weight of the carriage and provide, when running, the guide bashmakov 25

to the working planes are corrected; their guides. In the vertical plane, the direction of the carriage 4 is provided by two rollers 26, rolling along the plane 18 of the guide 15. The spring-loaded roller 27 presses the rollers 26 to the plane 18. Not carrying the main loads during the movement of the carriage rollers 24, 26 and 27 assembled on high-precision ball support ease of movement of the carriage, minimal wear and increases the life span of the guides. It should be noted that the path of the carriage when applied de. on one billet it can be equal to 20000 m. However, the roller guides to the ballioid or horizontal ;;: -; could not provide the required accuracy of the direction of the inevitable "wander1," their) in the lower pens owing to the point contact |) of the rollers with the direction of the junction, in which the trajectory of motion exactly replicates the most minor irregularities on the rolling surfaces.

In order to compensate for the errors of the roller bearings, corrective nanostructures 20, 21 are used, which are located in such a way that the envelopes 28 to the middle of their working planes 22 and 23 intersect point 29, where the tip of the tool is located. In this way, all additional movements of the rollers 26 in the direction perpendicles towards the plane 18, which occur when the rollers are rolling, do not cause translational displacements of the entire carriage, but only its rotation around the axis coinciding with the line of the stroke. Thus, the errors of the main guide 16 and the rollers 26 do not affect the straightness of the stroke, which depends entirely on the straightness of the corrective directions 20, 21, made with high accuracy and put in particularly favorable conditions of work (sliding friction with a small load in oil bath, no clogging; relatively large surfaces of bubble slides cover small irregularities.

The operation of the machine is automated. The main elements of the automatic control of the machine are mounted on the incisor slide switch, limiting the stroke of the carriage, and the command device.

Subject invention

1. A separator machine with two tables arranged one above the other and moved by separate chassis screws, of which the upper, carrying workpiece is made freely displaced relative to the lower table, moving along the table along the guideline using a carriage which is movable along the guides of the cross bar, that.

with the goal of achieving exactly | 1p moline {1; awns) ntrihov at a large length when liaHoecHHH is divided 1st into products:; origiialoz polygraphic |:., a threat, except for directing Hiiix with trs: I have 1 point for PJOCIIJTHHtg. Oenoz 1oG | loads from rezzozo; , rparsepca is equipped with additional corrective and; Hemming m11 with sliding friction, given for com; 1eissition; | of the hopping capabilities of the icebreakers | .il-v.

2. The form of execution of the drill 1, d. 1 and h a) K) HI, and with the fact that the structure is additional, the guides are not placed on the transport route; so that the normals, irosedepi b o to the middle of their working surfaces, intersect - on the cutting edge of the tool. -

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