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Machine Tools Patent

Set of parts for building small machine tools

A building set is provided including at least a drive motor, a spindle stock and a support element for holding these elements. These elements can be assembled to form a variety of small machine tools. The elements are formed as independent parts with under cut clamping grooves. The elements are joined together at their clamping grooves by a connecting element.

Method and device for the accurate setting of machine tools

For the accurate setting of machine tools, mechanically and electromechanically operating feeler devices are used, for example optical display means, which light up at the moment of touch contact with a surface to be machined. The accuracy of setting using these devices does not, however, satisfy the required setting accuracy in many cases. A method is provided, by means of the invention, in which a feeler head is slowly approached towards the surface or edge to be touched until the contact of the rotating feeler head with the surface or edge corresponds to a feeler head rotational angle (.alpha.) which is greater by a predetermined safety value than but is smaller than The device for this purpose consists of a housing with an electrical voltage source and circuitry equipment for optical display elements, the housing being penetrated by a hollow shaft connected with one pole of the voltage source. The hollow shaft is provided at its machine side end with an accurately ground receiving region and carries, at its free end, an electrically insulated feeler head which is connected to the input of an amplifier.

Tool holder for boring, milling and the like machine tools

A tool holder for boring, milling and the like machine tools has a conical shaft with a support member arranged coaxially on said conical shaft. The conical shaft fits into a conical first receiving bore of the machine tool spindle. The support member has a second conical receiving bore for the conical shaft of a tool. The second conical receiving bore is coaxial with the tool holder conical shaft and is smaller than the first receiving bore of the spindle. The tool holder conical shaft has a coaxial bore, in which is axially movable a collet carrier with a collet. The ends of the collet are constructed as claws and engage an annular groove at the free end of the tool conical shaft. Several axially acting cup-spring packages are arranged in the support member concentrically with respect to the second conical receiving bore. The cup-spring packages act onto the collet carrier through several radially extending support arms for clamping the tool conical shaft in the tool holder. To release the collet and to eject the tool conical shaft, at least one hydraulically loadable piston, which acts onto the collet carrier opposite to the spring pressure, is provided in the bore of the tool holder conical shaft.

Machine tools description


Method and device for axis control for machine tools and the like
Multiple operator station for machine tools
Pallet with adjustable anchorage system for equipping the clamping fixture of a rough piece to be machined with machine tools
Set of parts for building small machine tools
Position transducer for machine tools and measuring machines
Safety apparatus in connection with work loading device to safe guard machine tools operation

PAT. NO. Title
151 4566169 Set of parts for building small machine tools
152 4560310 Tool holder for boring, milling and the like machine tools
153 4555857 Method and device for the accurate setting of machine tools
154 4541762 Apparatus for loading and/or unloading machine tools or the like
155 4541315 Inside chuck device for machine tools
156 4539500 Commutator motor and improved brush construction for use in portable machine tools
157 4533823 Coding systems for elements of machine tools, particularly of the numerically controlled type
158 4523632 Cooling system of rotary fluid pressure cylinder for chucking in machine tools
159 4503725 Bracing device for machine tools
160 4493041 Method and apparatus for determining the working range of a double-acting clamping cylinder for actuating chucking devices on machine tools
161 4478009 Automatic control system for machine tools
162 4471529 Measuring head for measuring equipment, multi-coordinate measuring instruments, and machine tools
163 4456960 Method and device for detecting tool abnormality in machine tools
164 4446408 Control circuit for machine tools
165 4445182 Method of control of NC machine tools
166 4444061 Force and torque sensor for machine tools
167 4442725 Shock absorbing apparatus for travelling a table or tool rest in machine tools
168 4442576 Tool cooling device for machine tools
169 4433383 Installation comprising a plurality of numerically controlled machine tools
170 4419806 Tool changing device on machine tools, particularly on horizontal boring and milling machines
171 4404729 Multi-spindle machine tools
172 RE31247 Diagnostic communications system for computer controlled machine tools
173 4379667 Chuck for machine tools
174 4361836 Safety device at remote control of hydraulic or pneumatic machine tools
175 4360878 Method for the library storage of a workpiece program for numerically controlled machine tools
176 4360807 Device for remote control of hydraulic or pneumatic machine tools
177 4355390 Method for checking data written into buffered write-read memories in numerically controlled machine tools
178 4354305 Contouring and threading attachment for multi-function machine tools
179 4354251 Device for testing programs for numerical control of machine tools
180 4339962 Switching device for variable speed gears in machine tools
181 4339749 Abnormal condition sensing monitor system for use with machine tools
182 4337385 Orbital tool support system for EDM machines and other machine tools
183 4335633 Tailstock for machine tools, in particular lathes or the like with electric actuator having a monitored thrust
184 4334362 Bidimensional tracer of machine tools or measuring machines
185 4331020 Dimension indicator for sheet-metal folding or shearing machine tools
186 4319103 Protective encasement for machine tools
187 4317394 Arrangement for loading and unloading workpieces of machine tools
188 4302144 Work changing mechanism for machine tools
189 4301581 Method and apparatus for the production of turned workpieces on multi-station machine tools
190 4295146 Device for moving automatic drawing machine tools
191 4268786 Position pickup for numerically controlled machine tools
192 4260307 Work table for machine tools
193 4251957 Workpiece transfer apparatus for a plurality of machine tools
194 4237598 Manufacturing processes using machine tools
195 4209910 Auxiliary device for vertical turning and boring machine tools
196 4168464 Set point sensing system for numerically controlled machine tools
197 4151759 Indexing table, in particular a turret head, for machine tools
198 4122379 Analogue control device for abutment-free stroke limitation of machine tools
199 4117762 Machine tools with sliding tool-holding ram
200 4105899 Safety mat switch for machine tools and their like

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