SU28757A1 - Device for simultaneous milling of twin sockets in the collectors of steam superheaters of steam boilers - Google Patents

Description

The main author's certificate No. 6653 describes a device for simultaneous milling of paired sockets in the collectors of steam superheaters of steam boilers, in which a frame is used, mounted on the collector with the help of 1 guide shank and carrier; spindles with cutters that receive rotation from the intermediate roller by means of a cylindrical transmission. ;

In a modified device, in order to install the spindles on different count-; The lecturers, it is proposed to frame the instrument: to provide slots for the locking bolts that fix the guide spindles in the set position, with; the liners at the ends of the latter are installed in the forked ends | support bracket and bolted. To prevent the spindles from turning around the central roller, it is proposed to use a collar associated with a wedge with a guide shank and provided with openings for accommodating the machined nests of the collectors. The installation of the spindle at the desired distance is carried out using scales with gauges. To connect

the support bearing of the device with its guide shank offers a modified fixture using a cup, placed in the groove of the collector and connected to the bearing end of the central roller by a wedge. In order to impart greater rigidity to the connection of the bracket with the frame, a modified device is offered, in which a bracket bracket is used, carrying spindle guides in its upper part and a clamp for fastening the machined sockets in its lower part.

In FIG. 1 depicts a front view of the proposed modified instrument, with partial axial cuts; FIG. 2 is the same with the use of a glass connecting the object to be processed with the device; FIG. 3-bracket; FIG. 4 is a side view.

In the proposed device, spindles 5 (Fig. 1), receiving rotation from a central roller / by means of a cylindrical gear 2, pass the guide squares / 5. The latter for mounting them on the frame / 5 are equipped with bolts 76 placed in oval

The slots 20 of the frame 15. Prior to installation, the upper ends of the spindles are fixed with bolts 23, 24-liners 2 / placed in the slots of the bracket 7, 22 located in the forked ends of the bracket. IPS milling cutters are screwed onto the ends of the spindles and provided with a coolant groove on the outside, and in-grooves for the front bar 35, which is inserted into the tubes of the workpiece / F. The latter are covered by the collar 25, which opens on the hinge 18 and is connected to the guide shank 18 by a wedge 26. The connecting part 14 of the roller / is screwed into the upper end of the shank / and outside it is located between the collar 25 and the frame / 5 coupling 36, 37 with lock nut 37 (FIG. one).

To set the spindles to the required distance from the center of the roller 1, frame 15 is equipped with a scale 28 with indicators 31, 32 attached to squares 13, and bracket 7 with a scale 27 with indicators 29, 30 connected by bolts 23, 24 with inserts 2Л 22.

FIG. Figure 2 shows a modified instrument, where the shank 18, intended to be inserted into the groove of the workpiece 39 (Fig. 2), is made in the form of a hollow cup.

The end of the roller / is screwed into the supporting cylinder 40, which is placed in the 3rd cavity of the cup 18 and is connected with it by a wedge 41. A sleeve 36, 37 with a lock nut 37 are located outside the bowl between the frame 15 and the upper surface of the workpiece. Guides squares 13 are equipped with vertical posts 13 , in the slots of which are placed the screws / b of the thumb 15, connected to the inserts 2 /, 22 and intended for their installation. FIG. 3 shows the device in which the spindles 5 are placed in the guides / J, installed not in the frame, but in the bracket bracket 43 (Fig. 4) attached to the solid square 4f of the frame 42. The objects to be processed / 9 are secured with the clamp 25 by means of a rod 44 with a flywheel 45, wherein the collar 25 is located in the lower cheek of the bracket 43. In the remaining parts of the designation of FIG. 2 and 3 are similar to the device of FIG. one.

The subject matter of the invention.

Claims (5)

1.Video modification of the device according to the author's certificate No. 6653, characterized in that in order to install the device spindles on various collectors-frame / 5 it is provided with slots 20 for placing the locking bolts 16 of the guide spindles, and the support bracket 7, respectively, has fork ends for installing inserts 2 22, at the ends of the spindles fastened with bolts 23, 24. 2. In the apparatus of Claim 1, use a yoke 25 connected to the guide shank 18 by means of a wedge 26, serving through the holes in it to prevent the spindles from turning around the central roller 1. 3. In the device according to claim 1, use the scales 28, 21, which serve by means of pointers 29, 30, 31 and 32 for setting the spindles at the required distance. 4. In the device according to claim 1, a device for connecting the bearing support for the roller of the bearing device with a guide shaft, characterized by the use of a cup 18 placed in the groove of the collector, bearing JfJ outside the sleeve, and inside the supporting end of the connecting part of the roller 1 interconnected by means of a wedge 41 . 5. In the device of claim 1, use a staple bracket 43, the upper cheek of which carries guides 5 for spindles 5, and the lower cheek supports collar 25 for securing the workpiece in it using a rod 44 and a flywheel 45. to the dependent author M. V. Zaikyn № 2875 fig .M: u | rш i T, t W w tx-1- F 1 R fng.e   WW J7 i 30 addicted .З Ф№Г.4. Copyright Certificate M.V. Zaikmv JNI 28757 . -.-; tl: 1-D; l; ;. one.. - r ° © f1