SU1360919A1 - Automatic machine for cutting capillary pipes - Google Patents

Abstract

The invention relates to the processing of metals by pressure and m. B. used in mechanical engineering for cutting pipes into dimensional blanks. The purpose of the invention is to increase productivity and quality. The capillary tube is fed in the longitudinal direction through the leveling device and the orifice of the spinneret 9 for the length of the workpiece and fixed by the clamping mechanisms 32. Turning on the electromotor 29 rotates the circular knives 13. By causing the stirring drive, the slider 3 to the right extreme position coax the blades 13 to radially move to the axis of the tube being cut, thereby applying a stress concentrator (ring groove) on it . When the extreme right position is reached by the slider 3, it encounters its support with a stop and the separation of the workpiece (tear). At the same time, the tube is pulled over the length of the next billet. In the extreme right position of the slider 3, the capillary tube is released from the clamps of the mechanism 32. The disk knives 13 and the slider 3 are returned to their original position, and the cycle is repeated. 9 il. S (L with Oi about with CD 3 10 GV

Description

The invention relates to the processing of metals by pressure and can be used in machine building for cutting pipes into dimensional workpieces.

The purpose of the invention is to increase the productivity of a capillary tube cutting machine and to improve the quality of the products obtained.

FIG. 1 depicts the proposed pipe cutting machine, sheeting, view; in fig. 2 — node I in FIG. one; in fig. 3 shows section A-A in FIG. one; in fig. 4 is a view B in FIG. 3; in fig. 5 shows a section B-B in FIG. 3; in fig. 6 - section G-Y in FIG. 3; in fig. 7 is a section d-d in fig. four; in fig. 8 is a section E-E of FIG. four; in fig. 9 shows a section of an Ж-Ж in FIG. four.

The machine contains a frame 1, in the upper part of which is placed a direction, 2 with a slider 3, on which a slider 4 with springs 5 (Fig. 1.6) is mounted with possibility of mixing, besides, on the slider 3 there are heads 6 with the possibility of inserts in which are mounted in bearings 7, sleeves 8 with spinnerets 9. Instrument blocks 10 are installed on heads 6, each of which contains two carriages 11 with springs 12, disk knives 13 mounted on eccentric axles x 14 s screwdriver grooves 15, wedges 16 with nuts 17. On The slider 3 also contains a mechanism for mixing the instrumental units 10, containing rocker arms 18, pushers 19, pressure bar 20, in order to reduce the friction of the pushers against the pressure bar, they interact with it through thrust bearings 21, two-arm swivel arms 22, connected 23, breaking lever 24 with roller 25, spring loaded 26 and connected to one of the pivot levers 22 by means of axis 27, a ruler 28, and the rotation mechanism of the tool blocks contains an electric motor 29 mounted on a slider 3, a belt 30 th and gear 31 transmission. On the slider 3 and the slider 4, clamping mechanisms 32 are mounted, each of which contains a pneumatic cylinder 33, a spring-loaded rod 34 connected by an axis 35 with a rod, levers 36 and clamping jaws 37 on axles 38. The drive movement of the slider 3 contains an electric motor 39, a belt drive 40 , gearbox 41, crank 42, connecting rod 43, rocker 44, ryach 45, associated with the finger 46, installed, on the slider, in addition, on the slider 3 there is a copier 47. On the base 1 there is a spring-loaded stop 48 containing a rack 49, the plunger 50, the roller 51, in addition, is attached to the mechanism 52 riha ovki.

The machine works as follows.

Before starting the automat, the capillary tube is filled between the rihto rollers.

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mechanism 52, dies 9, clamping jaws 37 clamping mechanisms 32. At this moment, the slider 3 with the tool blocks 10 is in the extreme left position, the clamping jaws 37 of the mechanisms 32 clamps installed on the slider 3 and the slider 4 are open, the disk knives 13 of the tool blocks 10 are in the upper position under the action of the spin springs 12. Thereafter, compressed air is supplied to pneumatic cylinders 33, the rods 34 of which, moving downwards by means of levers 36, turn the clamping jaws 37, thereby clamping the capillary tube. Next, an electric motor 29 mounted on the slider 3 is turned on, which transmits the rotation of the tool; 1b-blocks 10 by means of a belt drive 30, gears, 31 and heads 6 carrying the tool blocks 10, while the breaking lever 24 with its roller 25 is out of force a motor ruler 28 is then started, the rotation of which is transmitted through a belt transmission 40, a gear 41, a crank 42, which informs the swinging movement of the rod 43, the gate 44 with the lever-45, which is connected with the slider 4. th finger 46, thus moving the te.m polzushku 3 in the rightmost position, at the same time is pulled capillary tube alternation of straightening rollers 52 of the mechanism. When moving the slider 3 to the right, the breaking lever 24 rolls its roller 25 along the copier 28 and rotates the lever 24 by an angle determined by the elevation angle of the ruler, while turning the two shoulders pivoting levers 22, which move along the guides the pressure bar 20 acting on the pushers 19, turning the rocker 18, connected with the carriages 11, which move the circular knives 13 towards each other to the axis of the tubing, forming an annular groove (stress concentrator) on it. When reaching a certain depth of about 0.7 the wall thickness of the capillary tube, the copier 47 mounted on slider 3 meets the roller 51 of the spring-loaded stop 48 mounted to the bed, thereby the slider 4, squeezing the straps 5, moves relative to the slider 3 and there is a final separation (separation) of the workpiece without rolling the hole. After meeting copier 47, sliders 3 with spring-loaded stop 48, roller 25 of breaking lever 24 comes off copier line 28, and the released lever 24 rotates to its original position under the action of springs 12 and centrifugal forces arising from the action of rotating disk knives 13 with carriages 11 During the reverse movement of the slider 3, it finds on a stretched capillary, with a copy line 28,

acting on the roller 25 of the lever 24, turns it around the axis 27, and it has no effect on the mechanism for moving the tool blocks 10, which remain in the extreme upper position. When slider 3 reaches the leftmost position, the cycle repeats. The setting of the disk knives 13 is as follows.

The tightening wedges 16 are released, alternately rotating the eccentric axes 14 of the circular knives 13 with a screwdriver, align them symmetrically to the axis of the capillary tube, and then fix the axes 14 with wedges 16 of the tight nuts 17.

Claims (1)

Invention Formula A capillary cutting machine containing a frame, a crawler, carrying tool blocks with clamping mechanisms, a mechanism for moving the tool blocks and a leveling mechanism. 0 five characterized in that, in order to improve performance and improve the quality of the products obtained, it is equipped with a slider mounted on the slider with the possibility of reciprocating movement relative to it, an additional clamping mechanism mounted on the slider, a copier mounted on the slider, and a spring-loaded stop fixed on the frame with the ability to interact with the copier, and the instrumental blocks are made in the form of carriages connected with the mechanism for moving the instrumental blocks and circular knives, The axes of which are fixed on carriages, wherein the mechanism for moving the instrumental blocks is made in the form of a copying ruler and rocker arm, one arm of which is arranged to interact with the carriage, and the other through successively installed pusher, pressure bar, two shoulders and t gu associated with a ruler. 3 W (PU2.1 51 Aa LCS gz LL W 9 and 1 MF -12 (Pig 9 Editor G. Gerber Order 5781/1 7 VNIIPI State1 about the USSR Committee on Inventions and Discoveries 1 13035, Moscow, Zh-35, Raushsk nab., 4/5 Proizvodstvenno-noligraphicheskoy enterprise, Uzhgorod, ul. Design. four Compiled by Y. Filimonov Tehred I. VeresKorrektor M. Sharoshi Circulation 97011