摘要:
During the infeed of cartridges from an ammunition container or magazine to a firing weapon, problems arise in the event there are not simultaneously fulfilled the following three requirements: (a) the first cartridge of a firing burst or series firing should be first delivered to the firing weapon following completion of the run-up-to-speed of the firing weapon; (b) the last cartridge of a firing burst or series firing should be delivered to the firing weapon before the firing weapon has been braked; and (c) the spent cartridge cases should be returned by the cartridge infeed apparatus to the ammunition container. To fulfill these objectives, there is provided an arrangement composed of an endless storage chain, a transfer location, and a switchable gate, in order to allow the temporary storage of spent cartridge cases during reverse movement of the cartridge transport apparatus.
摘要:
When using a multi-barrel firing weapon, such as a Gatling-type gun or canon, it is desired during a firing burst, to first fire the initial or lead cartridge or ammunition round when the rotating array of weapon barrels, during running up to speed, has attained its full rotational speed, that is, when the firing weapon is capable of firing at the full or maximum firing rate. In this way there is realized the desired high precision and low round scattering of the weapon system. The cartridge infeed apparatus requires a certain amount of time until it has reached its full cartridge infeed velocity. The initial or lead cartridge therefore should only then be delivered to the multi-barrel firing weapon after completion of the running up to speed of the array of weapon barrels and after the cartridge infeed apparatus has reached its full or maximum cartridge infeed velocity. To that end, there are provided two cartridge transfer wheels which are interconnected by a clutch, these cartridge transfer wheels being arranged between two endless chains. There are also provided a separate cartridge return channel and a sensor for determining the starting position of the initial or lead cartridge.
摘要:
In the case of a twin-barrelled firing weapon, the apparatus for delivering ammunition from a container structure to the firing weapon is located between the two weapon barrels of the firing weapon. In order to accommodate or store as much ammunition as possible in the space between the two weapon barrels, the cartridges are arranged not only side by side but also one behind the other. There is provided as the container structure a first front container from which cartridges are delivered to one weapon barrel and a second rear container from which cartridges are delivered to the other weapon barrel. The cartridges from one of the two containers are delivered to the related weapon barrel by a device for axially displacing the cartridges.
摘要:
A rotatable chuck for securing a workpiece in a machine includes a base element having a center and a plurality of jaw elements movable relative to the center. The jaw elements are movable to clamp the workpiece. The jaw elements exert a measurable clamping force on the workpiece. The clamping force exerted on the workpiece is measured and the jaw elements are moved relative to the center to vary the clamping force exerted on the workpiece. A comparator compares the measured clamping force to a predetermined clamping force and the jaw elements are moved, as the chuck is rotating, to adjust the clamping force on the workpiece relative to the predetermined clamping force.
摘要:
The method uses the actuating mechanism of the chuck of a machine tool for turning or grinding in order to pre-tension the radially acting springs of a clamping attachment by means of the jaws of the chuck. When the pre-tension is released, the springs maintain the clamping attachment on a workpiece that is mounted between centers in order to be machined. The method allows to perform automatic machining cycles on a workpiece mounted between centers, without the necessity to use a compensated chuck.
摘要:
The clamping device has two jaws between which a workpiece to be machined is immobilized on the table of a machine tool. Each jaw is supported by a carriage, and the carriages are coupled so as to move in a mirror symmetric fashion with respect to a plane orthogonal to the path of the carriages and at rest relative to the device. This avoids adding up tolerances of the shape of the workpiece with tolerance in the position of the clamping device relative to the machining tools.
摘要:
Cartridges are usually fed axially to a rotating array of barrels of a multi-barrel cannon or firing weapon, by means of a cartridge feeding apparatus, for example, an endless conveyor belt or chain. The cartridges must then be accelerated to the peripheral speed of the rotating array of barrels, since the spacing between the individual barrels is considerably greater than the pitch spacing between successive cartridges on the endless conveyor belt or chain. Uniform acceleration of cartridges fed by the conveyor belt or chain up to the peripheral speed of the rotating array of barrels of the firing weapon is effected in that the deflector wheel or sprocket comprises a predetermined number of radially adjustable slides. These radially adjustable slides define recesses or pockets for receiving the cartridges. Structure, such as a cam arrangement, is also provided for radially translating these slides during rotation of the deflector wheel or sprocket.
摘要:
The holding or clamp apparatus for the barrel cluster of a multi-barrel firing weapon, in particular, a Gatling type gun, is constructed such that a quick and easy replacement of the weapon barrels without the use of tools is possible. Up to now, each weapon barrel was secured by threaded connections. According to the invention, a locking ring is rotatably mounted at a substantially ring-shaped barrel support. This locking ring can be selectively locked in two positions on the substantially ring-shaped barrel support. In its first position, each one of its cams project into a recess of the associated weapon barrel and thereby secure the substantially ring-shaped barrel support against axial displacement with respect to the weapon barrels. Each weapon barrel contains a polygonal, such as a square section, which is embraced by holding claws or clamps of the barrel support, thereby securing such weapon barrel against unintended rotation about its own lengthwise axis.
摘要:
The chuck comprises jaws which, in addition to their radial movement, can each swivel around an axis essentially parallel to the axis of the chuck, and where this axis glides in a radial slideway of the chuck in order to allow said radial movement. This swivelling action ensures that the working surfaces of the jaws or of shoes sitting on them which are adapted to the outer shape of the workpiece will sit evenly on the workpiece even when the latter is mounted between centers and as a consequence its rotation axis does not coincide exactly with that of the chuck.
摘要:
In a Gatling gun containing a rotary weapon barrel assembly and positively reciprocating breechblocks, each of which is operatively associated with one weapon barrel of the weapon barrel assembly, each breechblock is provided with a spring-loaded firing pin and a cocking pin which are cocked and released by two control cams for piercing a cartridge. These two control cams are displaced from a safety or unarmed position into a firing position by a control slide possessing oppositely extending control grooves or slots. This firing apparatus possesses no pivotable parts as opposed to known apparatuses.