hydac fixtures, Germany hydac models, hydac prices

hydac fixtures are devices used in the manufacturing process to secure workpieces in the correct position for machining or inspection; they are also known as clamps. Broadly speaking, any device used to quickly, conveniently, and safely mount workpieces during any step of a process can be called a fixture. Fixtures typically consist of locating elements (to determine the correct position of the workpiece within the fixture), clamping mechanisms, tool-setting guide elements (to determine the relative position between the tool and the workpiece or to 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 fixture bodies (fixture bases). Examples include welding fixtures, inspection fixtures, assembly fixtures, and machine tool fixtures, among which machine tool fixtures are the most common and are often referred to simply as fixtures. When machining workpieces on machine tools, to ensure that the workpiece surfaces meet technical requirements such as dimensions, geometric shapes, and mutual positional accuracy with other surfaces as specified on drawings, the workpiece must be properly located (positioning) and securely clamped (clamping) before machining.

hydac fixture applications

Whether it is a simple hydraulic fixture or a complex integrated production line, the design process for hydraulic fixtures follows the same sequence: formulation of the overall scheme, selection of hydraulic cylinder types 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. Yunpower cylinders are used for positioning and clamping in automated machining processes. Products such as self-centering vises and self-centering clamping elements provide accurate positioning, swing clamp cylinders and lever arm cylinders provide clamping force on products, and support cylinders prevent deformation during product machining. From simple fixturing to robot-assisted machining centers, cylinders provide clamping and support forces to enhance production efficiency.

hydac fixture features

Mechanical grippers commonly use compressed air as the power source, with finger motion achieved through transmission mechanisms. Based on the different motion trajectories of the fingers when clamping the workpiece, mechanical grippers are classified into: 1) Arc-type opening/closing: Driven by the transmission mechanism, the fingertip motion trajectory is an arc. This type of gripper has strict requirements on the dimensions of the clamped area of the workpiece; otherwise, it may cause abnormal workpiece status. 2) Arc-type parallel opening/closing: In this type of gripper, the two fingers move in parallel opening and closing motions, while the fingertip motion trajectory 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/closing: In this type of gripper, the motion trajectories of the two fingers are linear, and the clamping surfaces of the two fingers remain parallel at all times. A cam mechanism is used to achieve parallel opening and closing of the two fingers; inclined cam slots are machined into the sliding blocks of each finger. When the piston rod moves up and down, rollers mounted on its end move within the cam slots, achieving parallel clamping motion of the fingers. Alternatively, a rack-and-pinion mechanism can be used: when the rack at the end of the piston rod drives the gear to rotate, the racks on the fingers move linearly, thereby causing the two fingers to open and close in parallel to clamp the workpiece.

hydac 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 dual-jaw parallel gripper can be used to accommodate dimensional deviations. For cylindrical objects, dual-jaw grippers can also be used for clamping. Note that containment or enveloping clamping requires less force. 2) Part weight: The clamping force must be sufficient to hold the object securely during the required operations. The type of jaw design must be considered when calculating the required clamping 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 constraints of the gripper jaws. If external operations are to be performed on the object, internal clamping is required. Scissor-type grippers are generally lower in cost 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 hydac tooling fixtures, hydac machine tool fixtures, hydac magnetic fixtures, hydac pneumatic fixtures, hydac pipeline fixtures, hydac pipe clamps, hydac piping fixtures, hydac line clamps, hydac electromagnetic fixtures, hydac vacuum suction cups, hydac vacuum fixtures, hydac electric fixtures, hydac hydraulic fixtures, hydac electromagnetic chucks, hydac magnetic chucks, hydac original imports from Germany. We welcome inquiries and orders from customers.