German agefa workpiece fixtures agefa model agefa price

agefa workpiece fixtures refer to devices used in the mechanical manufacturing process to secure the workpiece in the correct position for machining or inspection, also known as jigs. Broadly speaking, any device used to quickly, conveniently, and safely install a workpiece during any step of the process can be called a fixture. Fixtures typically consist of locating elements (to determine the correct position of the workpiece within the fixture), clamping devices, tool-setting guide elements (to determine the relative position of the tool to the workpiece or guide the tool direction), indexing devices (enabling the workpiece to undergo machining at several stations in a single setup, including rotary indexing devices and linear indexing devices), connecting elements, and the fixture body (fixture base). Examples include welding fixtures, inspection fixtures, assembly fixtures, and machine tool fixtures, among which machine tool fixtures are the most common and are often simply referred to as fixtures. When machining a workpiece on a machine tool, to ensure that the surface meets the technical requirements specified in the drawing, such as dimensions, geometric shape, and mutual positional accuracy with other surfaces, the workpiece must be properly located and securely clamped before machining.

agefa workpiece fixture operating principle

The most widely used grippers are pneumatic grippers; they are essentially cylinders powered by compressed air. When air is supplied, the gripper jaws approach and firmly grasp the object to perform other operations, and when the air direction is reversed, the gripper releases the object. Typical applications include changing the orientation of an object or moving it during pick-and-place operations. When the gripper holds a workpiece, there must be certain force constraints and form constraints to ensure that the clamped workpiece is fully released during movement, dwelling, and loading. In addition, it must ensure that the geometric deviation of the workpiece holding posture remains within the specified tolerance zone.

agefa workpiece fixture features

Mechanical grippers commonly use compressed air as the power source, achieving finger motion through a transmission mechanism. Based on the different motion trajectories of the fingers when gripping the workpiece, mechanical grippers are classified into: 1) Arc-opening type, where the motion trajectory of the finger tips is an arc under the drive of the transmission mechanism. This type of gripper has strict requirements for the dimensions of the gripped part of the workpiece; otherwise, it may cause abnormal workpiece status. 2) Arc-parallel opening type, where the two fingers of this gripper move in parallel opening and closing motions, while the motion trajectory of the finger tips is an arc. The illustrated gripper uses a parallelogram transmission mechanism to drive the parallel opening and closing of the fingers in two scenarios. 3) Linear-parallel opening type. The motion trajectory of the two fingers of this gripper is linear, and the gripping surfaces of the two fingers always remain parallel. A cam mechanism is used to achieve the parallel opening and closing of the two fingers. Inclined cam slots are machined on the sliding blocks of each finger. When the piston rod moves up and down, the rollers mounted at its end move within the cam slots, achieving parallel gripping motion of the fingers. Alternatively, a rack-and-pinion mechanism is used. When the rack at the end of the piston rod drives the gear to rotate, the racks on the fingers move linearly, causing the two fingers to open and close in parallel to grip the workpiece.

agefa workpiece fixture selection

When selecting pneumatic grippers and jaw designs, these are the main factors to consider: 1) Part shape, orientation, and dimensional variations: If the object has two opposing flat surfaces, a double-jaw parallel gripper can be used to address dimensional deviations. For cylindrical objects, a double-jaw gripper can also be used for gripping. Note that containment or enveloping grips require less force. 2) Part weight: The gripping force must be sufficient to hold the object securely while performing the required operations. The type of jaw design must be considered when calculating the required gripping force. Please note that safety factors should be taken into account when selecting the required force, and air pressure is also a factor to consider. 3) Accessibility: This relates both to the operation being performed and to the spatial size of the gripper jaws. If external operations are to be performed on the object, internal gripping is required. Scissor-type grippers are usually cheaper but require more space for jaw movement. 4) Environment: Grippers used in harsh environments or cleanrooms require appropriate designs. 5) Object retention: When air pressure is no longer supplied, the gripper will release its hold on the object, causing it to drop. For such applications, spring-assisted grippers can be used.

Weidou Intelligent Technology specializes in selling German agefa tooling fixtures, agefa machine tool fixtures, agefa magnetic fixtures, agefa pneumatic fixtures, agefa end effectors, agefa grippers, agefa grippers, agefa holders, agefa electromagnetic fixtures, agefa vacuum suction cups, agefa vacuum fixtures, agefa electric fixtures, agefa hydraulic fixtures, agefa electromagnetic chucks, agefa magnetic chucks, agefa original German imports. Welcome customers to inquire and order.