SU975231A1

SU975231A1 - Apparatus for securing parts

Info

Publication number: SU975231A1
Application number: SU813318911A
Authority: SU
Inventors: Иван Михайлович Старовайтов; Александр Емельянович Доронов; Владимир Тихонович Коровин; Николай Сергеевич Трофимов; Дмитрий Константинович Ходкевич; Эмма Алимжановна Головина; Николай Александрович Ефимов; Сергей Николаевич Нефедов
Priority date: 1981-02-16
Filing date: 1981-02-16
Publication date: 1982-11-23

Description

1one

Изобретение относитс к металлообработке и может быть использовано дл креплени деталей типа цанг.The invention relates to metal working and can be used for fastening collet-type parts.

Известно устройство дл креплени деталей , содержащее корпус, шток со свободно расположенной на его конце крестовиной, в которой на ос х установлены рычаги-прихваты 1.A device for fastening parts is known, comprising a housing, a rod with a crosspiece freely located at its end, in which levers 1 are mounted on axles.

Однако при таком исполнении низка производительность при смене закрепл емых деталей.However, with this design, the performance is low when changing fixed parts.

Цель изобретени - повышение производительности .The purpose of the invention is to increase productivity.

Поставленна цель достигаетс тем, что устройство снабжено толкателем с торцовыми выступами и наклонными пазами, пружиной и дополнительными ос ми, а в средней части штока выполнен буртик, предназначенный дл взаимодействи с толкателем, подвижно установленным на штоке, при этом пружина расположена между крестовиной и толкателем, стенки наклонных пазов которого предназначены дл взанмодействи с дополнительными ос ми, расположенными в выполненных в рычагах-прихватах продольных пазах.The goal is achieved by the fact that the device is equipped with a pusher with end lugs and inclined grooves, a spring and additional axles, and in the middle part of the stem there is a shoulder designed to interact with the pusher movably mounted on the rod, while the spring is located between the cross and the pusher, the walls of the inclined grooves of which are intended for engagement with additional axes located in the longitudinal grooves made in the levers-tacks.

На фиг. 1 представлено устройство, обший вид; на фиг. 2 - вид А на фиг. 1. Устройство состоит из корпуса 1, фланца 2, в отверстии которого расположен шток 3, на переднем конце которого свободно расположена крестовина 4 с установленными на ос х 5 рычагами-прихватами 6 . На штоке 3 с возможностью перемещени расположен толкатель 7 с торцовыми выступами 8 и наклонными пазами 9, расположенный между крестовиной 4 и буртиком 10 штока 3. Крестовина 4 зафиксирована от проворота винтом 11, и между ней и толкателем 7 установлена пружина 12. На конце штока 3 насажен упор 13 со сферической поверхнос 5 тью, поджатый гайками 14 и 15. Рычагиприхваты 6 выполнены с продольными пазами 16, в которых установлены дополнительные оси 17, предназначенные дл взаимодействи с наклонными пазами 9 толкател 7. На задний конец штока 3 установлен пнев20 моцилиндр 18.FIG. 1 shows the device, the general view; in fig. 2 is a view A of FIG. 1. The device consists of a housing 1, a flange 2, in the hole of which the rod 3 is located, on the front end of which a cross 4 is freely positioned with 5 tacks 6 mounted on the axes. A pusher 7 with end lugs 8 and inclined grooves 9 located between the crosspiece 4 and the collar 10 of the rod 3 is movably located on the rod 3. The crosspiece 4 is fixed against rotation by a screw 11, and a spring 12 is installed between it and the pusher 7 an anvil 13 with a spherical surface 5 is fitted, tightened with nuts 14 and 15. The levers 6 are made with longitudinal grooves 16, in which additional axles 17 are installed, designed to interact with inclined grooves 9 of the pusher 7. On the rear end of the rod 3 is mounted pne20 mocylinder 18.

Claims

The collapse of the pneumatic cylinder 18 from the stem 3 is prevented by the sleeve 19 connected to the sleeve 20 by means of a pin 21 and three screws 22. The sleeve 20 is fixed by screws 23 to the pneumatic cylinder 18 with a flange 24. The case 1 is fixed by screws 25 to the flange 2. The sleeve 26 is screwed 27 is attached to the housing 1. A screw fixture 28 is screwed into the housing 1, fixing the position of the workpiece-collet 29. The flange 2 is mounted on the conical part of the machine spindle 30 and fixed by a screw 31. From the pneumatic cylinder 18, retract the sleeve 32 and connect to the pneumatic distributor ( not shown). The device works as follows. The pneumatic distributor knob 3 moves to the extreme right position (Fig. 1). The collet 29 is manually inserted into the sleeve 26. At the moment the pneumatic distributor knob is moved to the opposite direction under the pressure of compressed air, the rod 3 moves to the left (Fig. 1) and the crossbar 4 is not, it pulls the push rod 7 through levers 6 to the stop flange

2. Upon further movement, the front ends of the tack levers 6 are dispensed with, as their rear ends through the additional axes 17 move along the slots 9 of the pusher 7 to its axis. The front ends of the tuck levers fit into the grooves of the collet 29, thereby engaging i pulling it into the sleeve 26, at the same time squeezing its petals. Thus, the collet 29 is set to its original position for internal grinding. After the end of the internal grinding, the pneumatic distributor knob is switched to its original position, under pressure of the air, the rod 3 moves to the right until its flange 10 pushes into the rear part of the pusher 7, thereby moving the pusher 7 to the right, which will push the collet 29 out of the sleeve 26 with its projections 8 of the crosspiece 4, an emphasis 13 with a spherical surface is mounted, which is pressed by nuts 14 and 15, and the petals of the collet 29 are compressed and decompressed smoothly. The application of the invention provides improved performance due to the rapid removal of machined parts. The invention of the device for fastening parts, comprising a housing, a brush with a crosspiece freely located at its end, in which axles are attached to the axles, characterized in that, in order to increase productivity, the device is equipped with a pusher with mechanical projections and inclined grooves, a spring and additional axes, and in the middle part of the shaft there is a flange designed to interact with the pusher movably mounted on the rod, while the spring is located between the crosspiece and the pusher, the walls the inclined slots of which are designed to interact with additional axes located in the longitudinal grooves made in the levers-tacks. Sources of information taken into account in the examination 1. Gavrilov A.N., et al. Album of fixtures for machine tools used in instrument engineering. M., 1963, p. 142-143, hell T-0111.

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