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The set contains 18 aluminium drawing models. The cylindrical models have cut-outs parallel to the main axis of the model. The models are precision-manufactured and are suitable for measurement exercises as well as drawing exercises. The geometric models support the learning process by providing an introduction to technical drawings: from the solid model to the more abstract representation of the three views in a technical drawing. For optimal learning, it is recommended that students work independently from each other on these exercises. The models are clearly laid out on a tray. Multiple trays are stackable, providing for space-saving storage. Two students can easily work with one model set.
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The kit offers the advantage of being ready for use immediately; it contains everything required for the exercises. The test pieces used are stainless steel bushes with various inner and outer diameters. This dimensional metrology practice kit is designed for practical training in the metalworking trades. They were manufactured with the accuracy of CNC parts. All parts are clearly laid out and well protected on a plastic tray. The trays are stackable, providing for space-saving storage. The kit includes ten bushes, all of which differ to a minor degree in dimensions and each of which is individually marked.
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The unit provides different configurations of control gears, which serve as an introduction togear engineering. The unit focuses in particular on the practical assembly ofgear components. The exercise system can be used to configure six differentgears in various combinations. Control gears are also known as variable or change gears.They are characterised by the fact that the speed is transferred differentlyvia various pairs of gear wheels. The most famous example is the transmissionin a car, which has one pair of gear wheels for each gear. The setup of the components is flexible so thatyou can configure your own ideas and try out different gears. The unit is driven by a handcrank. A solid frame made of square steel tubes and various bearings ensuressufficient accuracy to be able to set precise tooth interlocking. Allcomponents of the exercise system are ready at hand and securely housed in astorage system. Individual activities such as understanding the task and reading the drawing, assemblingthe components, adjusting, calibrating and checking the gear, and performingcalculations are performed one after the other.
Features:
Flexible and robust assembly kit for continuing mechanicalgear engineering.
Quick and simple assembly.
Uses industrial components to represent the real worldaccurately.
This experimental unit forms part of a series of teaching systems developed in collaboration with the Department of Automation and Information Technology at the Harz University of Applied Studies and Research. A rotary encoder determines the position of the vehicle from the rotation of its wheels. This in turn activates an actuator, the drive motor on the vehicle. A vehicle with an inverted rod pendulum acts as a mechanical multi-variable system. A fuzzy control moves the rod pendulum to the centre position, where it is held in position, and at the same time controls the position of the vehicle. A joystick can be used to control the system manually. This allows the degree of difficulty of the control process to be estimated very accurately. The control process is made more difficult by the fact that the vehicle can only move to a limited extent from its original position.
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Strain gauges are used extensively in sensor systems to detect forces, moments and deformations. Three test specimens for tension, bending and torsion are each fitted with four strain gauge measuring points. The experimental unit provides a wide-ranging introduction to the fundamentals of measurement by strain gauges. The strain gauges are wired in the full bridge. The specimens are loaded incrementally allowing for the strain reading to be sequentially monitored. The specimens can be inserted quickly and precisely into the frame. The digital display also features a zero balancing function to allow for any preloading. The strain gauge measuring range is protected by a Plexiglas cover, which also makes it clearly visible for inspection purposes. The measurement amplifier supplies the bridge supply voltage, and displays the load-dependent "bridge detuning" digitally in voltage values.
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The training system presented here represents a fully functional CIM cell (CIM = Computer Integrated Manufacturing). An overhead robot on a linear drive supplies two CNC machines with raw parts taken from a magazine. The machined dimensions of the finished workpieces are checked in an inspection jig before the items are placed in a finished parts store. The system allows an automated manufacturing process to be created. The demonstrates the basic processes of handling (robots), manufacturing (CNC machining), and control (PLC). Defined planning and control data is used to control various machines. The manufacturing cell is equipped with all necessary sensors and control devices. The control and programming software for the CNC machines, the robot, the linear drive and the software for the PLC (monitoring and control) are installed on two PCs. The relevant data is stored in a software program, and is processed by the control units of the individual machines. A PLC system monitors and controls the process.
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Fuzzy methods are particularly suitable for systems that mathematics cannot describe adequately or easily. Fuzzy algorithms can offer major advantages, as the control strategy is developed not on the basis of exact mathematical modelling, but on a linguistic description of the process. This experimental unit forms part of a series of teaching systems developed in collaboration with the Department of Automation and Information Technology at the Harz University of Applied Studies and Research. Additional input variables and the rule base can be easily added. The control strategy can be optimised at a later date. A joystick can be used to control the system manually. This allows the degree of difficulty of the control process to be estimated very accurately. The control algorithms are initially written in the user-friendly development software FSH-Shell and then compiled to generate microcontroller code.
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This experimental unit forms part of a series of teaching systems developed in collaboration with the Department of Automation and Information Technology at the Harz University of Applied Studies and Research. A fuzzy control will be developed and optimised for this purpose. The inclination of the pendulum is measured by a potentiometer. The unstable "inverted pendulum" system acts as a mechanical single-variable system. The upright position of the pendulum is adjusted by two independent propeller drives and should be achieved quickly and if possible without overshooting. This output value controls the actuators, two propeller drives. The sensor supplies a crisp signal to the fuzzy controller, where the signal is transformed into a fuzzy input value and inferenced before being transformed back into a crisp output value.
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A special quick-clamping system ensures all components are securely attached. The component connections face outward to allow easy interconnection by means of quick-couplers. An oil drip tray is positioned beneath the full width of the assembly panel. The structure of the course is based on the long-established BIBB concept of training in hydraulic drive engineering. The central element of the unit is the large assembly panel. Here, two different circuits can be easily constructed using items from the kit of modern standard industrial components and connecting hoses. There is generous space for all the system components to be accommodated in drawers and cabinets. The sturdy mobile base unit houses the hydraulic unit and the electrical switch box.
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Servo systems are closed-loop control systems. In many industrial applications it is often required to convert small mechanical motions into a different motions with increased force. The displacement of the carriage is established using a potentiometric position sensor and compared against the reference variable. The control deviation is processed in a separate servo amplifier. Hydraulic systems are particularly suitable for applications where large actuation forces are required. The unit allows the operation of a hydraulic servo system to be investigated in detail. A carriage with a mass of 50kg is moved by a hydraulic cylinder. Additional springs and an adjustable hydraulic damper permit static and dynamic loads to be simulated. The trainer is a mobile unit. Measuring devices can be housed in the built-under cabinet unit. Depending on the direction of the deviation, a control valve is activated in forward or reverse direction, which in turn produces a corresponding movement of the hydraulic cylinder and the carriage.
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A network of this kind can be quite extensive; line lengths of as much as 1000 metres and more are possible. This experimental unit is used to teach the initial basic steps in field bus technology based on the example of Profibus DP. Various terminal devices (slaves) are activated and read by a PC with a Profibus DP interface (master). Field bus technology plays a key role in modern-day process automation. The field bus permits networking of terminal devices such as controllers, sensors or actuators in the plant system (field level) with the higher-level control room (control level). The experimental unit includes a digital controller as well as analogue and digital input and output modules with a Profibus DP interface. A digital voltmeter displays the output signals. Digital signals are generated by switches and displayed by LEDs. Two potentiometers permit the simulation of input signals for the controllers.
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PLC Application is a compact teaching and practice unit for the control of a materials handling process using a PLC. Two processes can be simulated: a punching process, or workpiece control in the form of a sort operation. The working cylinder can switch between sorting and punching modes by a simple sequence of actions. All components are in a clearly laid out design. Black and white cylindrical workpieces are fed from a container onto a conveyor belt. On the belt is a reflex photoelectric proximity switch which differentiates between light and dark and feeds the white items to the pre-selected process (punching or sorting). The unit is designed for operation in conjunction with a PLC module. Use of PLC module is recommended. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.
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This experimental unit forms part of a series of teaching systems developed in collaboration with the Department of Automation and Information Technology at the Harz University of Applied Studies and Research. A fuzzy control is used to move the ball to a specific position quickly and with as little movement of the plate as possible, even when the position of the ball is modified by external influences. A ball-plate model acts as a weakly-coupled mechanical multivariable system. The inclination of the plate is modified by the movements of the respective motors; these movements are transferred to the plate by the drive rod. A joystick can be used to control the system manually. This allows the degree of difficulty of the control process to be estimated very accurately. The position of the ball is measured without feedback using a touch panel and the crisp signals sent to the fuzzy controller, where the signals are transformed into fuzzy input values and inferenced before being transformed back into a crisp output value. Two servo motors act as actuators during this process.
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The controller can operate as a configurable PID controller and as a 2-point controller. In the latter case, as well as the setting of the reference variable, the hysteresis can also be pre-set. The recorder function provides continuous recording of controlled, manipulating and reference variables. The software ideally supports the experimentation and learning process of demonstration models. Its key features are the software controller and the recorder function. It plots responses to changes in the reference (e.g. step input) and disturbance variables. The controller included with each demonstration unit can also be used instead of the software controller. Measured values can be printed out and saved to data media. Connection to a PC is by a USB port. The supplied USB interface module provides an adequate number of analogue inputs and outputs, enabling even complex circuits, such as a cascade to be controlled. In this case, controlled, manipulating and reference variables can be plotted, displayed and saved by the program's recorder function.
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Hydraulic systems are very common in drive engineering. The set enables the trainee to study both hydraulics and electric systems. Components Set Electrohydraulics enables to set up various electrically controlled drives. These drives are often electrically controlled. Therefore, hydraulics and Electrohydraulics are very important for vocational training.
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This instructional kit provides the necessary material for students to learn systematically how a shaft is joined to a hub or a coupler in a professional way using taper keys. The material is clearly laid out on a plastic tray. We recommend that the exercises are carried out in a workshop, as all preparations such as filing, drilling, countersinking and tapping must be carried out in a correct and proper manner by the student. The well-structured instructional material outlines all the necessary technical information and provides a step-by-step guide through the exercises.
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The kit is used primarily for viewing and information purposes. The cutting geometry has been deliberately changed on some of the drills so that the influence of the cutting angle and clearance angle can be demonstrated. Exercises or experiments can only be carried out to a limited extent. It includes 19 different drills, including special types, e.g. a centre drill or a taper pin hole drill. The well-structured instructional material enhances the informational value of the collection. In addition a taper shaft and the associated key, as well as a sliding gauge are included. The kit is clearly laid out on a plastic tray.
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The kit is used primarily for viewing and information purposes. The kit is clearly laid out on a plastic tray. The well-structured instructional material enhances the informational value of the kit. No provision is made for conducting exercises or experiments. It includes 13 different grinding tools and abrasives. The largest tool diameter is 115mm.
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The axial force (feed force) and torque occurring during cutting are measured using strain gauge transducers and digitally displayed on the amplifier unit. Investigation of cutting forces during drilling is fundamental to the teaching of cutting techniques. The set-up comprises a transducer, which also holds the specimen being machined, and an amplifier unit with digital displays. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments. The experiments must be conducted in a workshop environment, as a suitable drilling machine is required.
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The kit is used primarily for viewing and information purposes. No provision is made for conducting exercises or experiments. The well-structured instructional material enhances the informational value of the kit. It includes 12 different milling cutters. A shell end mill arbor and 2 cutter arbor rings are also included. A small steel plate with examples of machining is provided to help identify the possible applications for the different types of milling cutter. The kit is clearly laid out on a plastic tray.
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The kit is used primarily for viewing and information purposes. No provision is made for conducting exercises or experiments. The largest tool diameter is 16,75mm. The kit is clearly laid out on a plastic tray. The well-structured instructional material enhances the informational value of the collection. It also includes interchangeable guiding pins and a machining specimen with initial countersinking. It includes 12 different countersinks including special types, e.g. a backward countersink tool.
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The kit is used primarily for viewing and information purposes. The kit is clearly laid out on a plastic tray. The well-structured instructional material enhances the informational value of the kit. No provision is made for conducting exercises or experiments. Four reversible carbide tips and a turned part are also included. The turned part features examples of machining with the different tools. It includes 13 different lathe tools, including a reversible carbide tip holder.
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The kit is used primarily for demonstration and information purposes. It includes 10 different reaming tools and a limit plug gauge. It allows only limited scope for conducting exercises or experiments. The well-structured instructional material enhances the informational value of the kit. The kit includes a sample plate with reamed bores with which a fit can be checked. The kit is clearly laid out on a plastic tray.
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This instructional kit provides the necessary material for students to learn systematically how a hub and a shaft can be joined together in a professional way using feather keys. The material is clearly laid out on a plastic tray. The well-structured instructional material outlines all the necessary technical information and provides a step-by-step guide through the exercises. We recommend that the exercises are carried out in a workshop, as all preparations such as filing, drilling, countersinking and tapping must be carried out in a correct and proper manner by the student.
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Gears transmit rotational movements. They adapt the torques and speeds of a consumer drive according to demand. Deals with a fixed gear unit. Worm gears are normally deployed to gear down, and are mostly self-locking. This enables components to be compared directly with the complete system. The gear unit comprises a worm gear with an upstream spur gear stage. Combining the two types of gear in a single box enables high transmission ratios to be attained at high levels of efficiency in a compact space. The comprehensive and clearly structured instructional material, which includes a set of drawings, sets out the individual assembly steps in detail and provides additional information on the areas of application, mode of operation and design of the assemblies. Large-format drawings suitable for workshop practice can be attached to the display board at the rear of the trolley. All steps can be demonstrated to, and then performed by, the students themselves.
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The practice kit provides the material necessary for students to systematically learn how components can be joined together in a professional way using pins. Both flat and cylindrical parts are pinned together. We recommend that the exercises are carried out in a workshop, as all preparations such as scribing, drilling, clamping, reaming and joining must be carried out in a correct and proper manner by the student. The material is clearly laid out on a plastic tray. The well-structured instructional material outlines all the necessary technical information and provides a step-by-step guide through the exercises.
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Compressed air is often used instead of electrical energy, particularly in workplaces where there is a risk of explosion of combustible gases. The heat generated by compression is dissipated by cooling fins. Compressors are at the core of compressed air generator plants. These plants are used where compressed air is used as a source of energy. The compressor is driven by a V-belt. This enables references to be made between individual components and the Large-format drawings suitable for workshop practice can be attached to the display board at the rear of the trolley. A second fully functional compressor, permanently mounted to the workbench, can be used for demonstration purposes. A disassembled piston compressor is contained in the drawers of the trolley cabinet which also holds the tools and assembly aids, small parts and gaskets required for assembly.
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The forces that act on the lathe tool during machining are measured in three directions: cutting force, feed force and passive force. The 3-component force measurement device uses a strain gauge system. Investigation of cutting forces during turning is fundamental to the teaching of cutting techniques. The set-up comprises a transducer, which also holds the lathe tool, and an amplifier unit with digital displays. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments. The amplifier unit supplies the strain gauge bridges and displays the measured values on three digital displays. The experiments must be conducted in a workshop environment, as a suitable lathe is required.
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The experimental set-up enables fundamental experimentation in the mechanics of deformation. Flat rods can be permanently deformed by means of a simple bending device. A suitable force measuring device and a wide range of specimens are supplied. The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments. A range of different materials and bend radii can be investigated using this experiment. The experiments should be conducted in a workshop environment, as the bending device has to be clamped into a vice. The necessary deformation work, e.g. to produce a 90° angle, is recorded in the experiment using a force measurement system.
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The dimensional metrology practice kit is designed for practical training in the metalworking trades. They were manufactured with the accuracy of CNC parts. All parts are clearly laid out and well protected on a plastic tray. The trays are stackable, providing for space-saving storage. The kit includes ten spacer plates, all of which differ to a minor degree in length and each of which is individually marked. The kit offers the advantage of being ready for use immediately; it contains everything required for the exercises. The test pieces used are flat stainless steel spacer plates.
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The model comprises two elements: the actual drilling jig and a cast part representing the workpiece. It is clamped in the jig and the drill is fed to it by way of bushes. The cast part is to be drilled with four through-holes using a standard drill. Core aspects are reading and understanding technical drawings, standardised and production-oriented dimensioning of parts, sketching of suggested improvements or required parts. In addition, many other aspects can be covered with the aid of this interdisciplinary teaching model, including: jig geometry, cast parts, clamping techniques, and manufacturing technology.
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The range consists of a series of different cutaway models of drive system components. The mechanical functionality of all components is retained in full. Each of the cutaway models is securely mounted on a base plate to which handles are attached for carrying purposes. All mechanisms are hand-driven. All components are industrially relevant and have been prepared such that individual active elements are clearly visible to the user.
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The surfaces of the steel parts have a gunmetal finish to prevent corrosion. The safety catch model forms part of the extensive course providing an introduction to technical drawing. The approach involves teaching the systematic and transferable learning matter based on an operational mechanism. Comprehensive and well-structured instructional material supports wide-ranging use of the model in technical training. All parts, made from steel, are precision-manufactured on CNC machines.
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Hermetic refrigerant compressors have welded sheet steel housing. The drive motor and refrigerant compressor are fitted in this capsule. The motor compressor is suspended by springs in the capsular housing which minimises the transmission of vibration to the capsule body, thereby reducing noise emission. Unlike open compressors, the refrigerant compressor is directly connected to the drive motor and therefore does not require any floating seal.
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The kit offers the advantage of being ready for use immediately; it contains everything required for the exercises. This dimensional metrology practice kit is designed for practical training in the metalworking trades. All parts are clearly laid out and well protected on a plastic tray. The kit includes ten shafts, all of which differ to a minor degree in dimensions and each of which is individually marked. They were manufactured with the accuracy of CNC parts. The trays are stackable, providing for space-saving storage. The test pieces used are stainless steel shafts with various protrusions.
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The range consists of a series of different cutaway models of drive system components. The mechanical functionality of all components is retained in full. Each of the cutaway models is securely mounted on a base plate to which handles are attached for carrying purposes. All components are industrially relevant and have been prepared such that individual active elements are clearly visible to the user. All mechanisms are hand-driven.
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The surfaces of the steel parts have a gunmetal finish to prevent corrosion. Comprehensive and well-structured instructional material supports wide-ranging use of the model in technical training. The drilling jig model forms part of the extensive course providing an introduction to technical drawing. The approach involves teaching the systematic and transferable learning matter based on an operational mechanism. All parts are precision-manufactured on CNC machines.
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This dimensional metrology practice kit is designed for practical training in the metalworking trades. The kit includes ten bearing plates, all of which differ to a minor degree in dimensions and each of which is individually marked. The test pieces used are stainless steel bearing plates. They were manufactured with the accuracy of CNC parts. The kit offers the advantage of being ready for use immediately; it contains everything required for the exercises. The trays are stackable, providing for space-saving storage. All parts are clearly laid out and well protected on a plastic tray.
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This dimensional metrology practice kit is designed for practical training in the metalworking trades. They were manufactured with the accuracy of CNC parts. The kit includes eight tapers, all of which differ to a minor degree in dimensions and each of which is individually marked. The kit offers the advantage of being ready for use immediately; it contains everything required for the exercises. The test pieces used are stainless steel internal and external tapers.
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This dimensional metrology practice kit is designed for practical training in the metalworking trades. The test pieces used are stainless steel shafts with various protrusions including one square section. The kit includes ten shafts, all of which differ to a minor degree in dimensions and each of which is individually marked. The kit offers the advantage of being ready for use immediately; it contains everything required for the exercises. All parts are clearly laid out and well protected on a plastic tray. They were manufactured with the accuracy of CNC parts. The trays are stackable, providing for space-saving storage.
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This dimensional metrology practice kit is designed for practical training in the metalworking trades. The test pieces used are stainless steel angle plates that have been manufactured with the accuracy of CNC parts. The kit includes ten angle pieces, all of which differ to a minor degree in dimensions and each of which is individually marked. The kit offers the advantage of being ready for use immediately; it contains everything required for the exercises. The trays are stackable, providing for space-saving storage. All parts are clearly laid out and well protected on a plastic tray.
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This dimensional metrology practice kit is designed for practical training in the metalworking trades. The test pieces used are stainless steel slotted shafts. They were manufactured with the accuracy of CNC parts. The kit offers the advantage of being ready for use immediately; it contains everything required for the exercises. All parts are clearly laid out and well protected on a plastic tray. The trays are stackable, providing for space-saving storage. The kit includes six shafts, all of which differ to a minor degree in dimensions and each of which is individually marked.
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The set contains 18 aluminium drawing models. The cylindrical models have cut-outs parallel to, and at an angle to, the main axis. The models are precision-manufactured and are suitable for measurement exercises as well as drawing exercises. The geometric models support the learning process by providing an introduction to technical drawings: from the solid model to the more abstract representation of the three views in a technical drawing. Two students can easily work with one model set. For optimal learning, it is recommended that students work independently from each other on these exercises.
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The instructional material includes a complete set of drawings. The geometric models support the learning process by providing an introduction to technical drawings: from the solid model to the more abstract representation of the three views in a technical drawing. It presents each model in three views, as well as its 3D view and production drawing. The set contains 18 aluminium drawing models. The prismatic models have cut-outs parallel to, and at an angle to, the edges of the prisms. The models are precision-manufactured and are suitable for measurement exercises as well as drawing exercises.
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All parts, made from steel, are precision-manufactured on CNC machines. The drilling jig model forms part of the extensive course providing an introduction to technical drawing. The approach involves teaching the systematic and transferable learning matter based on an operational mechanism. Comprehensive and well-structured instructional material supports wide-ranging use of the model in technical training. The surfaces of the steel parts have a gunmetal finish to prevent corrosion.
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The lever shears model can be considered to be a project enabling interdisciplinary, action-oriented teaching. As well as the primary technical drawing focus of teaching, other topics that can be covered include machine elements, assembly processes, and manufacturing technology. The lever shears model forms part of the extensive course providing an introduction to technical drawing. Comprehensive and well-structured instructional material supports wide-ranging use of the model in technical training. The approach involves teaching the systematic and transferable learning matter based on an operational mechanism.
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