German zank workpiece fixtures zank model zank price

zank workpiece fixture is any tool with a specific function connected to the edge (joint) of a robot. This may include robot grippers, robot tool changers, robot collision sensors, robot rotary connectors, 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 peripheral equipment of the robot, robot accessories, robot tools, or arm-end tools (EOA). Main elements: mechanism type, gripping method, gripping force, drive unit and control object characteristics, mass, shape, center of gravity position, size, dimensional tolerance, surface condition, material, strength, operating parameters, operating space environment, operating accuracy, operating speed and acceleration, clamping time.

zank workpiece fixture structure

The cross-sectional shape and distribution of the pole cores vary depending on the workpiece. Common structural types of electromagnetic chucks include rectangular and circular shapes. Rectangular magnetic poles are divided into longitudinal and horizontal arrangements. Longitudinal arrangement of rectangular magnetic poles is suitable for securing larger workpieces; horizontal arrangement of rectangular magnetic poles is suitable for securing smaller workpieces. Circular chucks are suitable for securing ring-shaped workpieces or workpieces with complex shapes. The main characteristics of ordinary electromagnetic chucks are: magnetic flux lines are evenly distributed on the disk surface, electromagnetic attraction cannot be concentrated, and the magnetic force per unit area is relatively small; the direction of magnetic force is perpendicular to the chuck surface and difficult to change, producing only one type of magnetic force for workpieces with the same contact area; the point of action of the magnetic force on the workpiece is limited to the contact surface between the workpiece and the chuck and cannot be changed arbitrarily. Therefore, disadvantages during machining include low positioning accuracy, insufficient clamping force, narrow scope of application, and low production efficiency.

zank workpiece fixture structure

The mechanical gripper-type end effectors used in loading and unloading industrial robots are mostly two-finger claw types. According to the motion of the fingers, they can be classified as translational or rotational types. According to the mechanical clamping method, they can be classified as external clamping or internal expansion types. According to mechanical structural characteristics, they can be classified as electric (electromagnetic), hydraulic, and pneumatic types, as well as their combinations. When the end effector grips a workpiece, there should be certain force constraints and shape constraints to ensure that the clamped workpiece is completely released during movement, dwelling, and loading processes. In addition, it should ensure that the geometric deviation of the workpiece gripping posture reproduction is within the given tolerance zone.

zank workpiece fixture applications

1) Can stably ensure the machining accuracy of workpieces: When clamping workpieces with fixtures, the positional accuracy of the workpiece relative to the tool and machine tool is guaranteed by the fixture, unaffected by the worker's skill level, making the machining accuracy of a batch of workpieces consistent. 2) Can reduce auxiliary time and improve labor productivity: Using fixtures to clamp workpieces is convenient and fast; workpieces do not need scribing and alignment, significantly reducing auxiliary time; after clamping in the fixture, the rigidity of the workpiece is improved, allowing for increased cutting amounts; fixtures for clamping multiple workpieces or multi-station workpieces can be used, and high-efficiency clamping mechanisms can be adopted to further improve labor productivity. 3) Can expand the usage range of machine tools and achieve multi-functionality: According to the forming motion of the machining machine tool, attaching different types of fixtures can expand the original process range of the machine tool. For example, installing boring jigs on the slide plate of a lathe or the worktable of a radial drilling machine allows for boring processing of box parts. 4) Ensure machining accuracy: Adopting fixture installation can accurately determine the mutual position between the workpiece, machine tool, and tool. The positional accuracy of the workpiece is guaranteed by the fixture, unaffected by the worker's skill level, resulting in high and stable machining accuracy. 5) Improve productivity and reduce costs: Clamping workpieces with fixtures allows for rapid positioning and clamping without alignment, significantly reducing auxiliary time; clamping workpieces with fixtures improves workpiece rigidity, thus allowing for increased cutting amounts; multi-piece and multi-station fixtures can be used to clamp workpieces, and high-efficiency clamping mechanisms can be adopted. These factors are all conducive to improving labor productivity. In addition, after adopting fixtures, product quality is stable, scrap rate decreases, workers with lower technical grades can be assigned, significantly reducing production costs. 6) Expand the process range of machine tools: Using special fixtures can change the original purpose of the machine tool and expand its usage range, achieving multi-functionality. For example, after installing boring jig fixtures on lathes or radial drilling machines, boring processing can be performed on hole systems of box parts; through special fixtures, lathes can also be converted for use as broaching machines to fully utilize the role of general-purpose machine tools. 7) Reduce workers' labor intensity: Clamping workpieces with fixtures is convenient and fast. When using pneumatic, hydraulic, and other clamping devices, workers' labor intensity can be reduced.

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