Abstract: A method and tool for machining the surfaces of workpieces. The surface is finished by honing high pressure fluid jetting, and brushing. The tool used in this connection is provided with at least one tool element, such as a honing bar and/or a brush bar, and at least one spray or jetting mechanism.

Abstract: A honing process using a honing machine as a honing arbor or spindle, the travel or stroke limit points of which can be set, and that also has a measuring device, with at least one sensor, mounted on the honing tool for the workpiece that is to be honed, as well as a regulating mechanism for controlling the honing process. The workpiece is measured during the honing process via the sensors, and during at least one measurement procedure, at least one parameter of the honing procedure is at least reduced.

Abstract: A honing device has a honing tool for the precision machining of blind-hole bores in a workpiece. The honing tool has a shank, at the free end of which honing strips are arranged. They can be moved radially outwards by means of a spreader rod. In a coolant duct system in the tool, during the machining of the workpiece coolant is supplied to the end of the honing tool facing the workpiece. To return the coolant, there are return ducts which extend along the outer periphery of the honing tool. The honing device also has a coolant feed device which can be aligned with and fixed to the honing tool. The feed and return of the coolant guarantee a precisely defined coolant circulation within the network zone.

Abstract: A method and apparatus for producing, in workpieces, bores having a high surface quality, and especially for producing cylinder bores in engine cylinder blocks. At least one fine surface machining is carried out with a rotating honing tool that executes a contrarotating stroke movement in the direction of the axis of a bore. The honing tool has honing stones that can be pressed radially against the wall of the bore via a feed system. The method and apparatus preclude damaging effects upon the surface quality of a bore as a result of the movement reversal of the honing tool. This is accomplished by reducing the force, with which the honing stones are pressed against the bore wall, during the reversal of the direction of the stroke movement of the honing tool. In particular, the pressure in the cylinder space of the piston/cylinder arrangement of the apparatus is reduced during reversals of the direction of the stroke movement of the honing tool.

Abstract: A grinding machine for machining the inner surfaces of workpieces. The machine has a bench to which are secured a workpiece headstock and a carriage which supports a grinder unit. The carriage can be moved on the bench via guides which are disposed on opposite sides of the grinder unit. Respective adjusting devices are provided for respectively pivoting a given one of the guides about an axis that is disposed at right angles to the axis of the grinder. The guides are formed by a circular guide and a roller guide arrangement which extend parallel to one another. The guides can be pivoted independently of one another to conform to the respective position of the workpiece axis, so that it is possible to achieve a precise alignment of the grinder axis relative to the workpiece axis, and at the same time to feed the tool against the wall of the bore which is to be machined. A very high machining precision is obtained in this way. Furthermore, the grinding machine is structurally straight forward.

Abstract: A device for honing workpieces. The device includes a rotatable and axially reciprocating honing tool which is guided by an upper and a lower end section in corresponding bearings of a workholding fixture, and also includes a drive rod between the honing tool and a machine spindle. This drive rod is flexible in the radial direction, which prevents out-of-balance at high rotational speeds of the honing tool as a result of excessive mass and excessive play in pivot bearings, while the associated uncontrolled vibrations are also prevented.

Abstract: A device to hold workpieces, in particular gears, to hone an existing axial center bore, consisting of a workpiece support member, which may be loaded and unloaded from one side. Levers supported pivotably in grooves formed in the workpiece support member are provided with tooth-like ends which engage tooth gaps of the workpiece in an approximately diametrically opposed manner. The levers are resiliently biased to rest in their engaged position in the direction of rotation of machining against stop surfaces of the grooves, with the levers being pivoted in the opposite direction during unloading to disengage the lever ends from the workpiece.

Abstract: An apparatus for holding of workpieces with at least one vertical bore, particularly for holding a connecting rod, for a honing operation. The apparatus includes two workpiece receiving plates between which the workpiece is insertable with horizontal and vertical play. The workpiece receiving plates have an opening for receiving the honing tool. A holding device is provided and is fixable relative to a workpiece receiving plate; vertically the holding device engages the workpiece free of play at a slight engagement pressure. The holding device is freely movable toward the workpiece in a first direction, and is immovable in the opposite direction. The honing device comprises at least one angle lever, which is tiltable or pivotally journalled relative to a workpiece receiving plate, has one arm engaging against the workpiece, and has the other arm connected with a device which restrains the angle lever in the release or loosening direction.

Abstract: A feeding device, especially for a honing tool, in which a frame is formed with a cylinder having a piston mounted therein and to which is connected a spindle or feed rod having the tools mounted thereon. The piston will effect rapid advance and retraction of the feed rod while the connection of the piston to the feed rod embodies threaded means which can be adjusted incrementally or manually to effect fine feeding movement of the tools following the rapid advance thereof. Automatic control means are provided for controlling the incremental feeding of the tools and for compensating for tool wear.

Abstract: An analogue control device with at least one electric stroke control emitter for the abutment-free stroke limitation of machine tools, especially honing machines, with which either a tool carrier or the workpiece connected to the machine tool carries out a reciprocatory stroke of adjustable length. As stroke control emitter there is provided a simple resistor which is adjustable in conformity with the machining movement and which is passed through by electric current, while pre-set values of the current or of the voltage generated by the current on the resistor are employed for limiting the stroke. The device also includes a warming-up or conditioning control which makes it possible automatically to carry out a predetermined number of working strokes with changed stroke length, the number and/or stroke length being adjustable.