German EMHART workholding fixtures EMHART model EMHART price

EMHART workholding fixtures are any tools with specific functions connected to the robot edge (joint). This may include robot grippers, robot tool changers, robot collision sensors, robot rotary unions, robot pressure tools, compliance devices, robot spray guns, robot deburring tools, robot arc welding torches, robot electric welding torches, etc. Robot end-effectors are generally considered robot peripherals, robot accessories, robot tools, and arm-end tools (EOA). Key elements: mechanism type, gripping method, gripping force, drive unit and control object characteristics, mass, shape, center of gravity position, dimensions, dimensional tolerances, surface condition, material, strength; operating parameters: operating space environment, operating accuracy, operating speed and acceleration, clamping time.

EMHART workholding fixture applications

Whether it is a simple hydraulic clamping fixture or a complex integrated production line, the design process for hydraulic fixtures remains the same: formulation of the overall scheme, selection of hydraulic cylinder type and specifications, selection of control valves, design of mechanical components, selection of pump station accessories, and system connection. Hydraulic fixtures provide powerful clamping and positioning forces for various machining processes. Yun Dongli hydraulic cylinders are used for positioning and clamping in automated machining processes. Products such as self-centering vises and self-centering clamping elements ensure accurate positioning; swing cylinders and lever cylinders provide clamping force on the workpiece; support cylinders prevent deformation during machining. From simple fixturing to robot-assisted machining centers, hydraulic cylinders provide clamping and support forces to enhance production efficiency.

EMHART workholding fixture principles and features

The structure of a flat vacuum suction cup consists of the suction cup and the suction cup holder. The flat vacuum suction cup is first connected via a pipe to vacuum equipment such as a vacuum generator, then brought into contact with the object to be lifted, such as glass or paper. The vacuum equipment is activated to create negative pressure inside the suction cup, securely holding the object for transport. When the object reaches its destination, air is smoothly introduced into the vacuum suction cup, changing the internal pressure from negative to zero or slightly positive, allowing the suction cup to release the object, thus completing the lifting and transport task. 1) High wear. Since it is generally made of rubber and directly contacts objects, it suffers severe wear and deteriorates quickly. It is a pneumatic wearable part. Precisely because of this, it stands out significantly among many pneumatic components. 2) Easy to use. Regardless of the material of the object being sucked, as long as it can be sealed without air leakage, it can be used. Electromagnetic chucks cannot do this; they can only be used on steel, and cannot pick up plates or objects made of other materials. 3) No pollution. Vacuum suction cups are particularly environmentally friendly, do not pollute the environment, and produce no light, heat, or electromagnetic effects. 4) Does not damage the workpiece. Since vacuum suction cups are made of rubber, picking up or placing down workpieces causes no damage to them. Hook-type and steel cable lifting gear cannot do this. In some industries, where requirements for workpiece surfaces are particularly strict, only vacuum suction cups can be used.

EMHART workholding fixture maintenance

1) Before use, check whether the limit dimensions are still in the correct position. 2) If stop pins are worn beyond tolerance, they can be ground and repaired; if baffles, pins, or locating tapered pins are worn beyond tolerance, they can be reassembled, shifting the worn areas to continue use. 3) Apply anti-rust oil after use. Regular long-term lubrication maintains the life of synchronous fixtures; incorrect lubrication will lead to reduced clamping force, poor precision, wear, and jamming, so correct lubrication is essential. After machining, be sure to clean the synchronous fixture body and slide ways using an air gun or similar tool. During cleaning, remove the dust cover fixing screws and take off the dust cover, while opening the main jaws to their widest position to easily clean accumulated chips inside the fixture. To avoid reduced clamping force due to rust, use rust-preventive cutting oil. Remove the synchronous fixture every six months for thorough cleaning (at least every two months when machining cast iron or copper products). Check parts for damage or wear, and replace with new items immediately if severe. Lubricate thoroughly before assembly.

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