Of those demanding the “source data” was the task that was set before him, one of the participants NTTM Odessa production Association “Pressmash” imeni 60-letiya Oktyabrya, d. PiLoc innovator, decided to create a combined angle grinder. It managed to develop, using a large part of the nodes commercially available pneumatic machines ИП1104, and it means that it is available for self-production, can easily be mastered and serial production.
The industrial machine instead of a Chuck for drills innovator mounted pulley, and to the upper part of the body attached with the sliding rod welded to the end of the sleeve. Through the hub was introduced the short spindle, which is fixed to the small pulley. Both are connected by a coaxial pulley drive belt. It remained to fix on a small spindle on the working body grinding wheel, polishing puck, and in his hands was the instrument of the new features.
Sander:
1 — body with turbine, 2 — large pulley, 3 — sliding rod with locking screw, 4 rubber belts, 5 — lifestudent on the small pulley, 6 — bushing.
From the existing grinding machines it is distinguished primarily by the fact that, providing not transverse to the axis, like most instruments, and longitudinal rotation of the working head, it is also allowed to change the “length” of the instrument — the distance from the main actuator to the working head. This is achieved by sliding the rubber rod and the drive cords, the transmitting rotation from the large pulley to small. There is another important advantage. If the basic pneumatic machine tool rotation frequency is 1400 rpm, then in combined form, it reaches 6000 — 7000 rpm And it when connecting to the same standard compressed air, not 4-6 ATM. And the increased speed helps to speed up processing, increase productivity.
TO REMOVE AND PUT BEARING
During the repair of tractor engines, especially in the rural workshops, one of the labor-intensive operations to the present time was disassembling the Cam shaft of the fuel pumps, especially pressurized bearings. Participants NTTM from the Kuibyshev agricultural Institute Kirov, A. and V. Zolotarev has developed a device to simplify and facilitate this work. They created the device provides a secure grip of the bearing and eliminates the offset of the parse of the pairing force relative to the press rod. It consists of steel plate — base, in guide grooves which moves a locking washer, the exhaust with the handle, the rod which put on the spring.
The unit is installed in the groove of the press table. The puck is on their original positions — in the extreme, a spring pressed position. Now to install the Cam shaft of the fuel pump device, the washer arm is withdrawn from the source position.
A “clip” for the bearing:
1 plate — base, 2 — locking washer 3 — stem arm, 4 — spring arm, 5 — end plate with a guide.
Through the formed cavity is injected Cam shaft before the bearing in the plane of the washer. Then release the handle locking washer under the action of the spring grips the bearing and holds it until it is removed from the shaft.
The proposed innovative device not only facilitates operation but also increases the quality and productivity almost two times the Device has small dimensions (180Х120Х25 mm) and low weight of only 1.5 kg It can be used when performing the inverse problem — zapressovke bearing. This requires quick puck the device to install the Cam, put the bearing on the shaft and using a special holder install the bearing.
PEN THROUGH… CAST IRON
For drilling holes in details made of cast iron in recent years increasingly used tverdosplavnoy drill bits are often brazed. Such fastening of the insert makes it difficult, and sometimes even preclude their reuse.
That’s why members NTTM from the Kuibyshev machine-tool production Association, innovators, V. Stukalov, and J. Klyushin proposed collapsible design of the drill bits with replaceable tverdosplavnoy head, which immediately significantly increased tool life.
This first drill can be successfully used to drill holes in the parts not only of iron but also of other materials. Its design allows the use of the instrument in all models of machines, designed for processing of holes.
Combined drill:
1 — carbide insert, 2 — sverlova head, 3 — groove of the holder, 4 — fixing screw 5 — flats, 6 — holder.
New drill consists of holders and inserts of the first cutting element. The tool holder has a longitudinal groove and transverse flats to facilitate securing of the drill and fixing it strictly along the axis of the cone Morse, in which is clamped the tool.
She first sverlovskaya head is also a composite: it is assembled from two parts — a hull and a welded plate from a hard alloy. The end of the housing are flat, he enters into the groove of the holder. During Assembly of the tool a corresponding groove in the drill body locates on the flats of the tool holder, thereby centerwe axis of the first drill and two planes at the center of the cone Morse. The nozzle attachment to the holder is a screw which draws the first drill bit to the reference plane of the tool holder.
The new drill sharpening can be carried in Assembly with the holder or separately. In the latter case, you can quickly change to blunt the cutting head at new and continue working, thereby increasing productivity and quality solovetskih operations. In General, the introduction of precast drill gives a considerable economic effect — 6 thousand roubles a year.
IN THE ARMS — METAL
Oddly enough, but most existing fixtures, which can be removed, for example, from electric baths or heating furnace hollow part, the retaining part operates on the principle of the arms, that is, covers the detail on the outside.
But at the Ryazan machine-tool plant for these purposes applied to the device, allowing to take part inside regardless of whether it is hot, cold or wet. It is particularly indispensable where the outer surface of the billet is curly or if you have to deal with thin-walled, afraid of foreign influences details.
The fixture is a U-shaped frame, vertical posts which converge at the bottom in a special cartridge, having at the bottom a movable lever system with shoes, a managed long rod going to the handle of the device. When moving the rod lever is shift end sleeve hinge-lever system, and the boot more, resting against the part from the inside, converge, freeing her. Provides traction and fixation in a predetermined position by a collet in the Chuck.
Fixture designed to hold parts with an inner diameter of 50-75 mm, while it provides a secure grip, the smallest force which can be about 1.5 kg/s.
Device application greatly increases the ease of use, greatly simplifies and accelerates the process of capturing details, contributes to the preservation of their quality.
Manual capture:
1 — handle with a U-shaped frame, 2 — handle rod, 3 — rod, 4 — collet; 5 — cartridge, 6 — lever system with shoes, 7 — end sleeve.
Conveyor capture:
1 — receiving lever grip, 2 — pressure lever grip, 3 — rocking bearing with the teeth of a 4 — rod spring lock, 5 — thrust, 6 — locking spring, 7 — small push-in arm, 8 — arm spacer large
And NTTM trust “Volgoelektromontazh” S. Mironov and A. Mundane designed the original capture different purpose — for feeding of hollow parts, for example pipe elements hanging on the line — for example, when painting their widespread method of dipping. Fixture design conceived in such a way that it is universal and automatic. Externally is a system of levers with a spring-loaded horizontal rod and striker. It is designed so that with increasing weight of the tube increases the clamping force on the teeth of the levers of the gripper holding the part. This is due to the fact that some of the teeth are located on a swinging support, a reinforcing clip.
The principle of operation of the devices is as follows. The pipe fits over the receiving arm grip and introduced him to the stock spring pins. At the time of the stop on the rod that pushes up the push-in small and large levers under the action of the spring receiving and holding the levers closer together, their steel teeth “snack,” the pipe wall.
Such an arrangement is easily integrated into the system pipeline. With this great push-in lever at the right moment can rest on the special wedge and open the grab will be automatically unloaded. Levers grip maintain the decompressed position prior to the introduction of new components and automatic clamping it. Thus, the introduction of these devices to paint the conveyor they pass to the automatic cycle. A new grip is designed for pipe diameter from 1/2 to 3 mm and a length of from 0.2 to 3 M. the Use of such devices on any similar operations will contribute to the elimination of manual operations, improve the efficiency and quality of work.
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It’s safe to say there is not a single sector of the economy of our country, where would be a creative contribution to the implementation of the decisions of the XXV Congress of the party, the tasks of the five-year plan Komsomol members and youth. Tens of thousands of engineering developments of young enthusiasts of technical creativity, innovators and inventors, is introduced in industry, agriculture, construction and transport, contribute to the acceleration of scientific and technological progress, the early implementation of the plan. The best of them were presented at the Central exhibition NTTM-80 in Moscow.