Germany Bohle workpiece fixture Bohle model Bohle price

Bohle workholding fixture is a machine tool accessory produced based on the principle of using electromagnetism: energizing internal coils generates magnetic force, which passes through a magnetically conductive panel to firmly hold workpieces in contact with the panel surface; de-energizing the coils eliminates the magnetic force, achieving demagnetization and allowing removal of the workpiece. Main applications include workpiece clamping during machining of ferrous workpieces on grinding machines, electromagnetic knife grinders, gantry milling machines, and gantry planers. Lifting threaded holes are provided on both sides of the rectangular electromagnetic chuck; T-shaped screws can be screwed in for lifting during installation, and it is fixed to the workbench using T-shaped blocks and screws. Connect the DC power supply and ground wire from the machine tool, then perform a precision grind on the upper surface of the chuck to ensure parallelism between the upper surface and the base. When holding workpieces, sufficient positioning holding force is achieved by bridging two adjacent magnetic poles, allowing grinding operations to proceed. Magnetization and demagnetization of the workpiece can be controlled via the machine tool buttons.

Bohle workpiece fixture introduction

Vacuum suction cups are one of the actuators for vacuum equipment. The suction cup material is made of nitrile rubber, which has high tensile strength, making it widely used in various vacuum holding devices. It performs tasks such as holding and transporting thin and light items like glass and paper in industries such as construction, paper manufacturing, printing, and glass processing. Vacuum suction cups are also known as vacuum lifters and vacuum nozzles. Generally, using vacuum suction cups to grab products is the most cost-effective method. There is a wide variety of vacuum suction cups. Rubber suction cups can operate at high temperatures. Suction cups made of silicone rubber are very suitable for gripping products with rough surfaces. Suction cups made of polyurethane are highly durable. In actual production, if oil resistance is required for the suction cup, materials such as polyurethane, nitrile rubber, or vinyl-containing polymers can be considered. Typically, to avoid scratching the surface of the product, it is best to choose suction cups with bellows made of nitrile rubber or silicone rubber.

Bohle workpiece fixture features

Mechanical grippers commonly use compressed air as the power source, achieving finger movement through a transmission mechanism. Based on the different motion trajectories of the fingers when clamping the workpiece, mechanical grippers are classified into: 1) Arc opening/closing type: Driven by the transmission mechanism, the motion trajectory of the finger tips is an arc. This type of gripper has strict requirements for the dimensions of the clamped part of the workpiece; otherwise, it may cause abnormal workpiece status. 2) Arc parallel opening/closing type: The two fingers of this gripper perform parallel opening and closing movements during operation, 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/closing type: The motion trajectory of the two fingers of this gripper is linear, and the clamping surfaces of the two fingers remain parallel at all times. A cam mechanism is used to achieve the 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 at its end move within the cam slots, achieving parallel clamping movement 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 clamp the workpiece.

Bohle workpiece fixture classification

1) Base components: Such as square, rectangular, and circular base plates, used as fixture tooling tables. All five working surfaces of the workbench feature grid-marked holes. The flatness, parallelism, and perpendicularity tolerances of these five surfaces, as well as the positional accuracy of the holes, are very high, ensuring sufficient accuracy for positioning on the table surface and for combination with other modules. The dimensions of the base table can be chosen arbitrarily, and special sizes can be custom-made. If high precision is required after combining tables, guide rails can be used to connect them. 2) Support components: Including U-type square boxes, L-type square boxes, support angle irons, angular connection blocks, angle gauges, frame-style support bases, etc.; used for height positioning or platform expansion, as well as for positioning or clamping other accessories. These are components such as shims, spacer plates, support plates, support blocks, and extension plates that are positioned on the platform to ensure the workpiece meets certain height requirements during processing, primarily serving as supports at different heights. 3) Positioning components: Including positioning squares, positioning straight edges, plane squares, V-type positioning components, and eccentric circle stops; used for accurately adjusting positioning location or height. These are components that precisely position the workpiece to ensure it meets certain dimensional accuracy requirements during processing; they determine the relative positions between components and between components and the workpiece. 4) Adjustment components: Including height adjusters and adjustment shims; Purpose: Components used to adjust positional differences and gaps between components and the workpiece. 5) Clamping components: Including: 90° spiral clamps, horizontal spiral clamps, 45° spiral clamps, vertical quick-action clamps, horizontal push-type quick-action clamps; Purpose: Components used to clamp the workpiece onto the platform or base elements to prevent displacement during processing. 6) Locking components: Including: quick-locking pins, countersunk quick-locking pins, countersunk locking pins, handle quick-locking pins, locating pins, connection lock magnetic pins, hex socket locking pins, external hex locking pins, magnetic pins; Purpose: Components used for positioning and locking between elements. 7) Assembly components: Including: 90-degree clamping angle sleeves, 45-degree clamping angle sleeves, parallel clamping angle sleeves, vertical clamping angle sleeves, standard support legs, swivel caster support legs with brakes, fixed support legs, frame-structure support bases, hydraulic lifting support bases, support rails; Purpose: Components acting on the connection or support between elements and other parts. 8) Other components: Including: retaining rings, grounding devices, spiral clamps, pipe clamps, lifting rings, cross-slot pressure pads, two-point clamping bridges, three-point clamping bridges, multi-purpose support templates, platform protective plates, tool carts; Purpose: Auxiliary components supporting the assembly of tooling elements. 9) Assembly tools: Including hex keys, oil stones, magnetic pliers, and other assembly tools.

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