Flat nose pliers:
(1) The machined surface of the workpiece must be higher than the jaw, otherwise it is necessary to use parallel sizing blocks to cushion the workpiece.
(2) In order to be firmly clamped and prevent the workpiece from loosening during planing, it is necessary to attach a relatively dry and neat surface to the sizing block and jaw. To make the workpiece adhere to the sizing block, it should be clamped while gently tapping the sub surface of the workpiece with a hammer. The smooth surface should be tapped with a copper rod to prevent damage to the smooth surface.
(3) In order not to damage the jaw and maintain the machined surface, a copper sheet is placed at the jaw when clamping the workpiece. D. Manually move the sizing block to check the clamping degree. If there is any looseness, it indicates that the workpiece and the sizing block are not well bonded, and you should loosen the flat jaw pliers and clamp again
(4) Insufficient rigidity: The workpiece needs to be firmly supported to avoid deformation caused by clamping force. Bench vice: Purpose: It is installed on the workbench to clamp and stabilize the processing workpiece, and is a necessary tool for the fitter workshop. The turntable clamp body can be rotated to rotate the workpiece to a suitable working position.
Working principle of flat jaw pliers
The flat jaw pliers are a general purpose fixture commonly used for installing small workpieces. They are attached to milling and drilling machines and are fixed on the workbench of the machine tool for clamping workpieces for cutting.
The assembly structure of the flat jaw pliers is a detachable threaded connection and a pin connection; The linear motion of the movable clamp body is transformed from a spiral motion; The working surface is the friction surface of the screw pair, guide rail pair, and clearance fitted shafts and holes. As can be seen from Figure 2-2, the composition of the flat nose pliers is concise and the structure is compact.
1. The machined surface of the workpiece must be higher than the jaw, otherwise it is necessary to use parallel sizing blocks to cushion the workpiece.
2. In order to be firmly clamped and prevent the workpiece from loosening during planing, it is necessary to attach a relatively dry and neat surface to the sizing block and jaw. To make the workpiece adhere to the sizing block, it should be clamped while gently tapping the sub surface of the workpiece with a hammer. The smooth surface should be tapped with a copper rod to prevent damage to the smooth surface.
The full name of machine tool flat jaw vice is machine tool flat jaw vice, also known as flat jaw vice, which is a machine tool accessory that holds the workpiece firmly on the machine tool workbench for cutting processing. Working principle of machine flat jaw pliers: Rotate the lead screw with a wrench, and drive the movable clamp body to move through the lead screw nut, forming a tightening and loosening of the workpiece.
Features of machine flat jaw pliers: concise and compact design structure, strong clamping force, easy to operate and use. The inner nut is generally made of strong metal materials to maintain greater clamping force. Generally, it is equipped with a chassis with a 180 ° scale line that can rotate in a 360 ° plane.