SU1135673A1 - Core cutting machine - Google Patents

Abstract

A CORE CUTTING MACHINE containing a drive working body, a core lock moving along the rack guides mounted on the racks, feeding and setting mechanisms and a water supply system, characterized in that, in order to precisely process the core and improve working conditions, the carriage guide from the working side The body is equipped with an eccentric and spring-loaded retainer in its body along the entire length, and the retainer is made in the form of a flexible collar that clasps spring-loaded pins with a pusher, while the feed mechanism is made in the form of a worm And setting mechanism - a rack pair schestern which is mounted on the same axis as the worm feeder, and a pusher rod cantilevered onto the hub of the worm wheel of the latter.

Description

The invention relates to devices for processing products made from non-metallic materials and can be used for processing abrasive wheels on the ends of rock samples of cylindrical shape (cores) of predominantly small sizes.

A core-cutting machine is known that contains a carriage moving along guides through a setting mechanism that provides not only feed movement, but also movement of the carriage with core lock relative to the working member along the guides parallel to the axis of rotation of the working member (setting motion). The feeding mechanisms and settings of this machine are made in the form of screw pairs with guides of translational movement, the core lock is made, rigid in the form of a screw pair with an elastic gasket 1.

However, during the operation of the setting mechanism, damage to the core by the working body is possible for the following reasons: as a result of careless manipulations of the operator by the setting mechanism both during the supply of the core to the working body and during operation; as a result of vibrations when the drive is running.

Vibrations also lead to loosening of core fixation, which reduces the accuracy of its processing. In addition, the core fixation is carried out manually, the fixation force is not constant and is unlimited, which leads to the destruction of low-strength cores. In the process of fixation as a result of accidental activation of the drive, injury to the hands of the operator by the working body is possible.

The aim of the invention is to increase the accuracy of core processing and improve the working conditions of the operator.

This goal is achieved by the fact that in a core-cutting machine containing a drive working body, a core lock moving along the carriage guides installed on racks, the feed mechanisms and the water supply system, the carriage guide from the working body side is fitted with an eccentric and spring-loaded in its body along the entire length of the stopper, and the retainer is made in the form of a flexible collar, clutching a spring-loaded rod with a pusher, while the feed mechanism is made in the form of a worm pair, and the setting mechanism - in the form of a rack pair, gear The second one is installed on the same axis with the screw of the feed mechanism, and the pusher with the pusher is cantilevered mounted on the hub of the worm gear of the latter.

FIG. 1 shows the proposed machine with a cut along the axis of the cylindrical guide, a general view; in fig. 2 is a view A of FIG. 1 and section BB in FIG. 1, in the plane of the screw feeder during the cutting process; FIG. 3 is the same in the setting position, in FIG. 4 shows a section B-B in FIG. 1, in the plane of the eccentric with the core retainer, in the release position of the core.

The coring machine contains a base 1, on which a driving working body 2 (abrasive wheel) and a water supply system (not shown) are placed, as well as racks 3 with a setting mechanism 4, made, for example, in the form of a rack and pinion mechanism with a manual drive. In the posts 3, a cylindrical guide 5 is rotatably mounted, having a longitudinal groove in which the stopper 6 is arranged in the form of a spring-loaded tongue. Guide 5 is covered by a worm gear

7 feed with a groove, which includes a stopper 6.

A worm wheel covers the carriage 8, which has an emphasis on the gear rack of the adjustment mechanism and is equipped with a screw

manual feed mechanism 7. On racks 3 fixed stops 9.

The core retainer consists of a shaft 10, cantilever-mounted on the hub of the worm gear 7, a spring-loaded pusher 11, covering the rods 10 and fixed on the pusher of the flexible collar 12, which bends around the free end of the rod, in which the prism is made.

An eccentric 13 is fixed on one of the pillars 3, which can be used as a rolling bearing.

The machine works as follows. By means of the setting mechanism 4, the carriage 8 with the screw-feeding mechanism 7 and the lock 10-12 cores is shifted to the stand on which the eccentric is mounted

13. Then, by means of the feed mechanism 7, the core retainer 10-12 is rotated to the position shown in FIG. 4. At the same time, the pusher 11, moving around the eccentric 13 to the position with the maximum eccentricity, moves along the brush 10, compressing the spring and moving the band clamp 12 away from the liner prism. A core is inserted into the resulting gap, after which the feed mechanism returns the core retainer 10-12 to the position shown in FIG. 2

In this case, the pusher 11, coming out of contact with the eccentric 13, under the action of the spring, is displaced to the right and presses the core to the prism of the rod by means of a band collar 12.

When the core retainer is adjusted to the position shown in FIG. 2, protruding from the guide 5, the ends of the stopper 6 abut against the fixed stops 9, with the result that the stopper 6 is sunk into the groove in the guide 5, compressing the spring, and moves away from the worm gear 7 (the gap between the stopper and the bottom of the worm gear is shown in section bb in Fig. 2). Disengaging the wheel 7 allows the carriage 8, the wheel 7 and the core lock associated with it to move along the guide 5 to any desired position.

Then, the driving tool and the water supply system are turned on and the core 7 is supplied to the abrasive wheel by means of the mechanism 7, as a result of which the protruding ends of the stopper 6 come out of contact with the stops 8 and the stopper 6 is pressed by the springs to the worm gear, preventing its spontaneous movement along guideline 5 (fig. 3).

After finishing the processing of one core end, the core lock is again transferred by means of the feed mechanism 7 to the position shown in FIG. 2, is moved along the guide 5 by means of a setting mechanism 4 and the second end is machined (Fig. 3).

The retainer core is then re-inserted into position in FIG. 2, is moved along the guide 5 to the post 3, on which the eccentric 13 is fixed and turning the core retainer to the position shown in FIG. 4, release the processed core from the retainer.

After replacing the core in the latch, the processing cycle is repeated.

Introducing a lock into the machine setting mechanism eliminates the possibility of damage to the working body, improves the accuracy of machining of the core ends, as well as improves the working conditions of the operator.

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Claims (1)

A CORE-CUTTING MACHINE containing a driving working body, a core clamp moving along the carriage mounted on racks, feed and adjustment mechanisms and a water supply system, characterized in that, for the purpose of accurate core processing and improving working conditions, the carriage guide is provided with a working body an eccentric and a spring-loaded stopper in its body along the entire length, and the latch is made in the form of a flexible clamp wrapping a spring-loaded rod with a pusher, while the feed mechanism is made in the form of a worm pair, and m the adjustment mechanism is in the form of a rack and pinion, the gear of which is mounted on the same axis as the feed screw, and the rod with the pusher are cantilevered on the hub of the worm wheel of the latter. Fig.]