Flexible vise. Drawing, description

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The traditional locksmith vise is "monolithic" with a table or bed; in their design and method of fastening, they are designed simply for clamping and holding the part in one unchanging position. This is convenient only when processing simple parts, and even those have to be clamped again each time in order to turn the other side. This unproductive operation "eats" a lot of working time, reduces productivity. That is why at almost every exhibition of the work of innovators you can find modernized or completely new original devices with more advanced methods of fastening parts.

Three-turn vise, created by NTTM participants at the Moscow Machine-Tool Plant named after Sergo Ordzhonikidze, is designed to clamp workpieces while processing them on drilling and milling machines. The novelty is distinguished by a kind of "flexibility": the fixed parts can be given a variety of positions without opening the vice. This is achieved due to the fact that the base of the tool is made rotatable, and the clamping part on the hinge assembly can move from a horizontal position to an almost vertical one. All this allows you to process parts in several planes, quickly giving the angle necessary for the operation.

The strength of the fastening is provided by a spring-hydraulic clamping unit, which, in addition to the usual clamping jaws, has a feed rod, a hydraulic cylinder with an adjusting wheel and a handle, and a fitting for connecting to a hydraulic system or a feed pump. With small own dimensions (650x150x120 mm), the vise develops a clamping force of up to 6 thousand kgf.

flexible vise
Three-turn vice: 1 - mounting plate, 2 - rotary base, 3 - hinge assembly, 4 - hydraulic cylinder wheel, 5 - hydraulic cylinder, 6 - fitting to the hydraulic system, 7 - hydraulic clamping assembly, 8 - vise jaws

flexible vise
Multiple vise: 1 - base, 2 - stand, 3 - step screw handle, 4 - left jaw, 5 - right jaw, 6 - frame with trunnions, 7 - pneumatic cylinder

No less versatile vices were created by G. Vorsunov, a participant in NTTM, an innovator of the 9th State Bearing Plant named after V. V. Kuibyshev. Their appearance, as it happens in most cases, was helped by production necessity; in the manufacture of cutters, it was necessary to rotate them in two planes - to form the front and rear corners of the tool.

The new design has a number of advantages. In addition to solving the main task - turning the cutter at a given angle - additional features are also included in the vise. So, they are multi-placed: thanks to the auxiliary inserts, several parts of the same type can be clamped in them, which greatly speeds up the processing process. The tool is indispensable even for mass production. Reconfiguring it does not require much time; after replacing the auxiliary liners, the body tilt is maintained at a given angle of the cutter surface. The work is also facilitated by a pneumatic drive to one of the jaws.

How are these high-performance vices arranged? Their base is made up of a slab and racks fixed on it. The frame of the clamping part with its pins enters the holes of the racks: a swivel is obtained that allows you to rotate the clamping unit to the required angle, which is determined by the risks of the scale printed on the end of the rack.

When adjusting the vise with the handle of the step screw of the left jaw, move it until it approaches the parts to be installed, and their final clamping is performed by the right jaw, which receives the necessary force through the pneumatic cylinder rod. She also presses the parts when they are changed, which speeds up and facilitates the operation.

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