CN2089863U - Quick tight multifunction vice - Google Patents

Abstract

The utility model relates to a quick tight multifunction vice which is characterized in that the local flat screw rod of a T-shaped screw thread is adopted, and the inner screw thread of the nut is provided with two smooth arc grooves. The flat face of the screw rod is limited by a bolt conical face, and an optional position is provided with a quick locking mechanism. A stochastic engaged clearance is adopted to fit and ensure the mechanism to be reliably locked. A machinery process control mechanism can one time complete the actions of prior locking and after clamping. Two jaw structures with multiple functions can be achieved. The vice has the advantages of simple structure, good economical efficiency, reliable locking of the screw thread and quick opening, closing and clamping.

Description

Quick tight multifunction vice

The utility model is a kind of quick clamping tool, belongs to the bench vice technical field.The tradition bench vice is for adapting to the clamping different size, and especially size differs too big workpiece, with the threaded adjusting aperture, time-consuming, work efficiency is too low, make the bench vice can quickly opening and closing, can clamp this problem by screw propulsion again, carry out a lot of researchs already in world the countries concerned.Though China clamps research starting evening to the bench vice quickly opening and closing, make progress very soon, only since 1986, just there is the patent of more than 20 mandate fast bench clamp in China.But it is slow to form commercial process.Summarize and analyze its main cause:

One, most fast bench clamp patents, its leading screw and screw screw-threaded engagement clamp reliable inadequately.When leading screw and screw screw thread tooth form the top state naturally, the thread form insufficient height that does not mesh sometimes or mesh, thus influenced the reliability that clamps.

Two, most fast bench clamp patents all have special operational main points separately.And bench vice is general, is again shared anchor clamps, runs into not clear key points for operation person, and operation may be broken down, even be damaged in a conventional manner.

Three, most fast bench clamp patents, though can yet be regarded as a kind of novelty and distinctive design, structure is more numerous.Bench vice is a kind of easy-consumed goods of low value, and cost is too high, is difficult to form commodity value.

The purpose of this utility model is to solve above-mentioned technical deficiency, is reformed simplification, designs to promote the multi-functional anvil vice commercialization.

The utility model, owing to adopted the local flat filament thick stick of manufacturability and the T type screw thread that nature is good to neutrality, intensity is higher to be provided with the retaining mechanism that two symmetrical smooth arc grooves match with the screw internal thread, and be provided with the back lash at random that mechanism therewith adapts, this has not only simplified its structure, and has guaranteed the reliability of engagement locking.The senior engineer of our company development and design success one on 125 millimeters vices as shown in Figure 1, the quickly opening and closing on 1000 diverse locations clamps experiment, the engagement noiselessness clamps probability 100%.

The utility model, method of operating and conventional table vice method of operating basically identical.

The utility model is simpler than the fast wrench structure of general patent, and part is few, labor and material saving, and cost is low.Similar to traditional bench vice, and assembly technology is easy.

Fig. 1 is product structure figure of the present utility model.This vice is made up of pincers seat 1, fixed clamp 2, moving caliper 3, leading screw 4, holding screw 5, V-type clamping plate 6, screw 7, flat fishplate 8, spring 9, jump ring 10, Handleset 11, binding nut 12, screw 13, bolt 14, spring washer 15, positioning assembly 16.By regulating positioning assembly 16, can make fixed clamp rotate 270 ° along the deep-slotted chip breaker of pincers seat, do nimble to guarantee fast pincers worker.

The clutch retaining mechanism (Fig. 1) of control leading screw screw is by binding nut compression spring 9, and the front end face of spring is pressed on the omoplate face of leading screw 4, bolt 14 Fixed Nuts, and flat parallel contact of conical surface and leading screw plays position-limiting action on it; Spring washer 15 is for preventing bolt looseness.When clockwise rotating handle, under the spring force effect, binding nut compresses the generation force of sliding friction to the thread left surface of leading screw, and the right side of spring has also produced frictional force to the small end face of binding nut, and the normal pressure of spring is directly proportional with frictional force.Frictional force has produced moment to the leading screw center, and when the driving leading screw clockwise rotated 90 °, then flat of leading screw was spacing by the bolt conical surface, makes leading screw and screw be in the optimal engagement state, finishes the locking program.Continue to clockwise rotate handle, then leading screw locking is motionless, and binding nut is along leading screw axial displacement, and its omoplate face advances the moving caliper clamping work pieces.So far finished the mechanically program-controlled process that the first locking back application of force clamps.When rotating counterclockwise handle, as in like manner above-mentioned, under the spring force effect, when the driving leading screw rotated counterclockwise 90 °, flat of another of leading screw was spacing by another conical surface of bolt, and then flat filament thick stick and screw screw thread break away from.At this moment, can be according to the folding of the quick push-and-pull moving caliper of the size of clamping element near the workpiece face.Clockwise rotate handle again, promptly rapid clamping work pieces.This clutch retaining mechanism is compared with the fast pincers of patents such as centering type, vertical disengaging type, and is simple in structure, part is few, labor and material saving, clutch reliable lock; And make leading screw become single rotation by compound motion; Stressed symmetrical balance, identical leading screw screw, intensity is big, can bear bigger clamping force.

The back lash constitutes (Fig. 1) by jump ring on the binding nut 10 and moving caliper 3 corresponding surfaces distance at random.This back lash has at any time adapted to the retaining mechanism of nature to the good T shape screw thread of neutrality.When leading screw and screw screw thread form the top state naturally, can obtain the random back-off positive engagement.This mechanism greatly simplifies than the structure of the Automatic Track Finding threaded engagement device of the fast pincers of relevant patent, and laborsaving noiselessness.Another effect of jump ring when rotating counterclockwise handle, moves after driving moving caliper, in case binding nut leaves moving caliper; The omoplate face synergy of jump ring and leading screw left can prevent the unlimited handle that rotates counterclockwise, and makes binding nut break away from leading screw.

Clamp mechanism (Fig. 1) is formed (Fig. 1) by handle binding nut and leading screw.After finishing to leading screw locking program, clockwise rotate handle, can rapid clamping work pieces.This type of clamp mechanism clamps soon than the patent of common mechanical program control type, and is simple in structure, and volume is little, labor and material saving, and its outward appearance is the same with traditional bench vice.

The structure of two kinds of jaws is made up of flat fishplate 8, V-arrangement clamping plate 6 and screw.To realize the multi-functional of vice.A kind of new-type combined type bench vice is arranged in the market, its flat fishplate and V-arrangement clamping plate respectively design and installation with the jaw of the moving caliper two sides of leading screw symmetry on.The V-arrangement clamping plate of these fast pincers, design and installation is in a side of leading screw, the below of flat pliers mouth.Than combinations thereof formula bench vice, guaranteeing that under its multi-functional identical prerequisite, structure has been dwindled in simplification, labor and material saving, cost is low.

Claims (5)

1, clamping multi-functional vice fast is made up of pincers seat, fixed clamp, moving caliper, two jaws, retaining mechanism and clamp mechanism, it is characterized in that the local flat filament thick stick of the mechanism of quickly opening and closing locking at an arbitrary position by T shape screw thread, with fixed clamp two ends two coaxial apertures supporting leading screw and screw center line same axis, have two smooth lonely grooves of symmetry to match with the screw internal thread, screw bottom omoplate face contacts with the fixed clamp opening surface and bears the pressure that is produced by folder power.Screw is by bolting, and the bolt top conical surface is limited in the leading screw flat horizontal surface, so that best clutch locking.Guaranteed reliable locking with back lash at random.And the screw mechanism that makes jaw produce enough clamping forces arranged.Once action realizes locking earlier the mechanically program-controlled mechanism that afterwards clamps and realizes multi-functional two kinds of jaw structures.

2, fast folder Multi-jaw vice according to claim 1 is characterized in that retaining mechanism, by binding nut 12, and compression spring 9, turning handle 11, then the frictional force that forms in rotation of spring applies moment to leading screw and makes its rotation; Flat is milled in the leading screw front portion, with the two coaxial apertures supporting leading screw two ends, front and back and the screw center line same axis of fixed clamp; The screw internal thread has two smooth lonely grooves of symmetry, and screw bottom omoplate face contacts holding capacity with the opening surface of fixed clamp bottom, has improved the general bearing-surface of bench vice above the fixed clamp bottom, thereby has simplified processing, has saved operation and material.Screw to be being bolted on the fixed clamp, and bolt had not only play a part fixing but also risen to be limited in the leading screw flat horizontal surface, to guarantee the best clutch locking state of leading screw and screw.

3, according to the described fast folder Multi-jaw vice of claim one, it is characterized in that back lash at random, the gap of 1/2 pitch that forms by binding nut 12, jump ring 10 and moving caliper corresponding surface.Random back-off positive engagement locking when forming the top state naturally with the screw thread that guarantees leading screw and screw.

4,, it is characterized in that clamp mechanism is made up of handle, the binding nut 12 at leading screw rear portion according to the described fast folder Multi-jaw vice of claim one.When clockwise rotating handle, binding nut produces axial displacement, and its omoplate face promotes moving caliper and advances, to realize the locking mechanically program-controlled process that the back application of force clamps earlier.

5, according to the described fast folder Multi-jaw vice of claim one, it is characterized in that being provided with V-arrangement dental forceps mouth three of V-arrangement clamping plate 6(in flat pliers mouth bottom) intersect respectively and be installed in fixed clamp and the moving caliper groove, fixing with trip bolt 5.V-arrangement dental forceps mouth is used to clamp steel pipe, and roundwood material and so on is to realize the multi-functional of vice.