CN2073788U

CN2073788U - Machine used vice with quick adjustable distance

Info

Publication number: CN2073788U
Application number: CN 90218072
Authority: CN
Inventors: 吴光生
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-08-12
Filing date: 1990-08-12
Publication date: 1991-03-27

Abstract

The utility model relates to a machine used vice with a quick adjustable distance, which comprises a fixed sliding combined seat, a movable sliding combined seat, a main screw pair (the main screw pair is composed of a nut baffle seat and a screw sleeve), an auxiliary screw pair with a bevel face sliding block (the auxiliary screw pair with a bevel face sliding block is composed of a main sliding block in double bevel faces, a half nut sliding block in a single bevel face and a screw rod), a plate spring and a baffle frame. The utility model has the characteristics of simple structure, reliable parts, convenient operation, high work efficiency, etc.

Description

Machine used vice with quick adjustable distance

The utility model is a kind of fixture for machine tool.

There are slow, the inefficient shortcoming of roll adjustment speed in traditional employing screw mandrel, nut as the machine vice of transmission mechanism; Shortcomings such as various " fast " machine vice of coming out one after another has the left and right hand thread utilized to pay mechanism, or utilizes eccentric stiffener, but all exists operation convenient inadequately, and accommodation is narrow; Application (GG87206484) that the Chinese patent communique disclosed on October 12nd, 1988 a " machine vice of clamping work pieces fast ", it has the advantage that roll adjustment speed is fast, efficient is high, but also there is the blemish in an otherwise perfect thing place, for example adopt the nylon block clamping screw to reach the purpose that guiding nut can rotate with screw mandrel synchronously under certain resistance, lost efficacy but nylon block is easy to wear.

The utility model can overcome the deficiency of above-mentioned prior art, and a kind of machine vice of quick roll adjustment is provided, and it has simple in structure, characteristics such as parts are firm, operation facility.

Quick machine vice of the present utility model comprises: decide that carriage saddle, moving carriage saddle, main spiral are paid (being made up of nut block seat and swivel nut), inclined plane slide block pair spiral is paid (being made up of master slider, monocline face half-nut slide block, screw mandrel in the double inclined plane), flat spring and divider.

Fig. 1 is a quick machine vice of the present utility model, and an end of screw mandrel 7 is installed in the mesopore of deciding carriage saddle 2 end faces, and this end exposes a square wrench, and the other end is installed in the mesopore that is connected in the end plate 1 of deciding carriage saddle 2 tail ends; Screw thread is revolved on the left side (or right) that the active section of screw mandrel 7 is processed with trapezoidal or notched teeth, has a long keyway in addition on the cylindrical of active section vertically, can slide along feather key 5; Screw mandrel 7 be enclosed within swivel nut 9 with the slippery through hole of screw mandrel 7 external diameters in, this through hole has a short keyway at the end by convex shoulder, feather key 5 usefulness interference fit are installed in this keyway; Be processed with a left side (or right) on the cylindrical of swivel nut 9 and revolve screw thread, and screw in the screw of nut block seat 10, nut block seat 10 is screwed on the plane, top of moving carriage saddle 4, the end of swivel nut 9 screw threads is equipped with spacing round nut 8, its other end has the boss shoulder, this convex shoulder is installed in the circular groove of master slider 12 end faces in the double inclined plane with ending plate 11 and screw, can rotates and drive master slider 12 therein and do axially-movable; It is secondary slide block that inclined plane slide block is paid by master slider 12 in the double inclined plane and two monocline face half-nut slide block 6() institute forms (seeing Fig. 2,3), connect with slippery mutually dovetail groove between major and minor slide block, its angle of chamfer α=15 °～50 ° (with 30 °～45 ° for well), can slide on the plane, top of moving carriage saddle 4 in the baseplane of master slider 12; Monocline face half-nut 6, be processed with internal thread with screw mandrel 7 threads engaged at inner arc surface towards screw mandrel 7, near this internal thread some of the diameter place of opening, thread being pruned, promptly being that the point of e is the center of circle from external distance internal thread center, outer radius with screw thread is that radius cuts, e must be greater than the tooth depth of this screw thread, on the small end face of monocline face half-nut slide block 6, fix a cheese head screw 15(and see Fig. 3), spacing usefulness as half-nut 6, two screws of processing on the side of monocline face half-nut slide block 6, in order to fixed head spring 13, the other end of flat spring 13 is screwed on divider 14, and divider 14 also is screwed on the plane, top of moving carriage saddle 4.Part 3 is a jaw iron among the figure, and part 16 is the plate that ends of movable carriage saddle.(annotate: when the square wrench of screw mandrel 7 was made in the other end, the screw thread that major and minor spiral is paid all was dextrorotation).

Fig. 1 is the main cutaway view of the machine vice of the quick roll adjustment of the utility model at releasing orientation;

Fig. 1-I is the A-A line cutaway view of Fig. 1;

Fig. 1-II is the C-C line cutaway view of Fig. 1-I;

Fig. 1-III is the B-B line cutaway view of Fig. 1-I.

Fig. 2 is the schematic diagram of the interior master slider of double inclined plane among Fig. 1.

Fig. 3 is the schematic diagram of monocline face half-nut slide block among Fig. 1.

The course of work of the utility model machine vice is described below in conjunction with Fig. 1:

When this vice is in releasing orientation, master slider 12 and to end plate 11 are the boss that nestle against on nut block seat 10 bases in the double inclined plane, two monocline face half-nut slide blocks 6 apart from the axle center farthest at this moment, make vice be in the most lax state, this moment is the moving carriage saddle 4(moving jaw of push-and-pull arbitrarily) slide fast vertically, touch workpiece to be pressed from both sides until its jaw iron 3, dextrorotation again (Y to) screw mandrel 7, screw mandrel 7 just drives swivel nut 9 run-in synchronisms by feather key 5, swivel nut 9 drives the interior master slider 12 of double inclined plane again and makes T to motion simultaneously, master slider 12 is by the active force of inclined-plane to half-nut 6 at this moment, and be decomposed into two mutually perpendicular component: one is the reaction force institute balance of flat spring 13 vertically; Another radially entad, the closed inwards screw thread with screw mandrel 7 of two half-nuts 6 is tentatively meshed, and with screw mandrel 7 be rotated further and fully the engagement, this moment, moving carriage saddle 4 was locked, moving carriage saddle 4 will be made J and force in caught workpiece and make workpiece clamped to feeding along with being rotated further of screw mandrel 7, the amount of feeding of moving carriage saddle 4 is that main spiral is paid the stack of paying lift with secondary spiral, and this helps the quick clamping of workpiece.When needs unclamp workpiece, need only be left-handed (Z to) screw mandrel 7, also must continue Z to rotary screw 7 after unclamping workpiece, so that remove the lock-out state of moving carriage saddle 4, this moment, screw mandrel 7 drive swivel nut 9Z were to rotation, drive master slider 12 and make J to motion, make monocline face half-nut slide block 6 be subjected to the two-way pulling force of master slider 12 and flat spring 13 and open, when master slider 12 and after only plate 11 touches the boss of nut block seat 10, it is motionless that screw mandrel 7 changes again, this moment, vice returned to the most loose state again, so that carry out work next time.

Claims

1, a kind of machine vice of quick roll adjustment, it comprises decides snug fit, moving carriage saddle, it is characterized in that: (a) form main spiral by nut block seat and swivel nut and pay: the nut block seat is screwed on the plane, top of moving snug fit, its left side (or right) is revolved in the screw of screw thread swivel nut is installed, the end of swivel nut screw thread is equipped with spacing round nut, its other end has the boss shoulder, with ending plate and screw it is installed in the circular groove of master slider end face in the double inclined plane, the centre bore of swivel nut is and the slippery unthreaded hole of screw mandrel external diameter, end at convex shoulder has a short keyway, and feather key is contained in this keyway with interference fit; (b) forming the secondary spiral of inclined plane slide block by master slider in the double inclined plane and two monocline face half-nut slide blocks and screw mandrel pays: connect with mutual slippery dovetail groove between master slider and two the monocline face half-nut slide blocks in the double inclined plane, its angle of chamfer is 15 °～50 °, and with 30 °～45 ° for well; One end of screw mandrel is installed in the mesopore of deciding the carriage saddle end face, and this end also exposes a square wrench, and the other end is installed in the mesopore that is connected in the end plate of deciding the carriage saddle tail end, and screw mandrel also is enclosed within the mesopore of swivel nut; (c) flat spring and divider thereof: an end of flat spring is screwed on the side of monocline face half-nut, the other end is screwed on divider, and divider also is screwed on the plane, top of moving carriage saddle, (annotate: when the square wrench of screw mandrel was made in its other end, the screw thread that major and minor spiral is paid all was dextrorotation).

2, by the described quick machine vice of claim 1, it is characterized in that screw mandrel revolves screw thread on the left side (or right) that active section is processed with trapezoidal or notched teeth, on the cylindrical of active section, have a long keyway in addition vertically, slippery with feather key.

3, by the described quick machine vice of claim 1, it is characterized in that monocline face half-nut slide block, its inner arc surface towards screw mandrel is processed with the screw thread that matches with wire rod thread, near this internal thread part of the diameter place of opening, thread being pruned, promptly being that the point of e is the center of circle from external distance internal thread center, outer radius with screw thread is that radius cuts, and e is greater than the tooth depth of this screw thread; Be fixed with a cheese head screw on the small end face of monocline face half-nut slide block; On the side of monocline face half-nut slide block, be processed with two screws.