Multifunctional two-way locking precision flat nose pliers

Abstract

The invention discloses multifunctional bidirectional locking precision flat tongs. According to the multifunctional bidirectional locking precision flat tongs, a lead screw is rotatably clamped into a fixed block fixed to a tong base guide rail and is in threaded connection with a sliding block clamped on the tong base guide rail in a slidable mode, connecting structures of rotary knob tools are arranged at the two ends of the lead screw, the upper end of the fixed block and the upper end of the sliding block are respectively provided with a center axle hole, two positioning pin holes A and fixing holes A, a rotary shaft sleeved with a disc spring is fixed into each center axle hole, and a positioning pin is fixed into each positioning pin hole A; the lower ends of fixed tongs and the lower ends of moving tongs are respectively provided with a center rotary hole, positioning pin holes B, and fixing holes B, a rotary shaft and a disc spring are sleeved with each center rotary hole, a positioning pin is sleeved with the two positioning holes B, and the fixing tongs and the moving tongs are pressed and fixed to the fixed block and the sliding block through screws; more than two corresponding fixed tong jaws and fixed tong jaws are distributed on the side faces of the fixed tongs and the side faces of the moving tongs. According to the multifunctional bidirectional locking precision flat tongs, workpieces, in various shapes, such as square materials, thin sheet materials, thick sheet materials and bars can be machined, and anybody can lock the multifunctional bidirectional locking precision flat tongs conveniently.

Description

technical field [0001] The invention relates to a general tool fixture used in the field of mechanical processing, in particular to a precision flat-nose pliers. Background technique [0002] Precision flat-nose pliers are the most widely used general-purpose tooling fixtures in the field of machining at present. constitute. One is that the fixed jaws and movable jaws of each flat-nose pliers generally only have one type of jaws such as flat jaws, patterned jaws, shallow step jaws, deep step jaws or V-shaped jaws, so the clamping The function is relatively single, and it can only clamp a single type of workpiece such as square material, thin plate material, thick plate material or bar material. Therefore, in order to make workpieces of various shapes such as square material, thin plate material, thick plate material or bar material can be clamped For processing, it is necessary for the manufacturer to spare more vise pliers with different jaws, which not only increases the...

AI Technical Summary

Problems solved by technology

One is that the fixed jaws and movable jaws of each flat-nose pliers generally only have one type of jaws such as flat jaws, patterned jaws, shallow step jaws, deep step jaws or V-shaped jaws, so the clamping The function is relatively single, and it can only clamp a single type of workpiece such as square material, thin plate material, thick plate material or bar material. Therefore, in order to make workpieces of various shapes such as square material, thin plate material, thick plate material or bar material can be clamped For processing, it is necessary for the manufacturer to spare more vise pliers with different jaws, which not only increases the cost of spare tools, but also takes up a large amount of storage space, which virtually increases the processing cost of the workpiece; once there are few types of spare vise, there must be Many types of workpieces cannot be processed; and when processing workpieces of different shapes, it is necessary to disassemble and replace the type of vise on the machine tool, which is time-consuming and laborious, and greatly reduces production efficiency

The second is that the locking mechanism composed of nuts and clamping screws can only be locked from one end of the moving jaw of the vise. For special processing occasions, such as processing occasions where the fixed jaw needs to be outward due to programming requirements, common The flat-nose pliers cannot be operated; moreover, the general operator operates and locks on the right side of the flat-nose pliers (the end of the movable jaw), but some operators are "left-handed", and it is very inconvenient to operate and lock on the right. Do not install the vise reversely on the machine tool, and the reverse-installed vise can only be operated more smoothly by "left-handers". Therefore, the one-way locking has caused inconvenience to some people.

The third is that there is a groove in the middle of the clamp seat of the flat-nose pliers, and the debris generated when processing the workpiece will fill the groove of the clamp seat, which is difficult to clean

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