CN2139046Y

CN2139046Y - Fast adjustable bench vice

Info

Publication number: CN2139046Y
Application number: CN 92238893
Authority: CN
Inventors: 曹祥荣
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-10-28
Filing date: 1992-10-28
Publication date: 1993-07-28
Anticipated expiration: 2002-10-28

Abstract

The utility model relates to a fast adjustable bench vice which comprises the components of a fixed vice body, a movable vice body, a screw rod, a fixed nut, etc. The fast adjustable bench vice is characterized in that the screw rod is engaged with the nut by the part of screw threads. The screw rod can be demeshed from the nut by an axial groove which is arranged on the screw rod or the nut. When the screw rod is demeshed from the nut, the movable vice body can free glide corresponding to the fixed vice body. When the degree of the opening of the vice body can reach the size of clamping workpieces, the workpieces can be clamped if only the screw rod rotates a small angle (about a half cycle). In addition, the bench vice has a simple structure. The bench vice can be obtained from the reforming of the bench vice of the driving of the traditional screw rod and the nut.

Description

Fast adjustable bench vice

The utility model relates to a kind of bench vice.

The conventional table vice all is to utilize the fixing silk material that matches, nut transmission, and in one week of rotary screw rod, the vice aperture can only change a screw mandrel pitch; When the size of folded workpiece differed big, this kind bench vice translational speed was slow, inefficiency.And the fast moving bench vice of prior art, though can realize the quick adjustment of span of jaw, most complex structure, functional reliability is poor, and can not be satisfactory.

At the above-mentioned defective of prior art, the purpose of this utility model is to provide a kind of can regulate span of jaw apace, overall structure is simple, clamping is convenient, reliable bench vice.

To achieve these goals, the utility model provides a kind of bench vice of following structure, but it comprises moving caliper that fixed caliper relative fixed caliper slides, be fixed in that a hold-down nut and an end in the fixed caliper can be meshed with hold-down nut, the other end links to each other movably with moving caliper and stretch out its outer parts such as screw rod, the part that meshes with described hold-down nut on the wherein said screw rod or run through that described hold-down nut inner surface has an axial groove, described groove circumferentially is being certain width; Correspondingly, run through and only have a thread belt that can be meshed with described screw rod or hold-down nut on described hold-down nut inner surface axial or the described screw rod outer surface, the circumferential width of described thread belt is equal to or slightly less than the width of described groove.

Bench vice of the present utility model is compared with the screw mandrel-nut transmission bench vice of prior art, because the engagement between the screw rod, nut can break away from by cooperating between groove and the respective threaded band, drive moving caliper so disengaging back screw rod can be free to slide and carry out fast moving, and the speed of regulating span of jaw is greatly increased, when needing to clamp slightly rotating screw bolt can make screw rod, nut engagement and realize clamping.Whole apparatus structure is simple, it is convenient, reliable to clamp, and can obtain by the simple modifications to existing screw mandrel, nut transmission bench vice.

Below in conjunction with accompanying drawing design feature of the present utility model is further described, wherein:

Fig. 1 is the partial cutaway diagrammatic sketch of a preferred embodiment of the present utility model;

Fig. 2 is that A-A embodiment illustrated in fig. 1 is to view.

See also Fig. 1, the utility model comprises fixed caliper (1), moving caliper (2), hold-down nut (3), the screw rod parts such as (4) that can slide with respect to fixed caliper (1).Hold-down nut (3) is fixed on the base of fixed caliper (1), one end of screw rod (4) passes hold-down nut (3), its other end stretches out in the outer and connection rotationally with it of moving caliper (2), and this kind structure can adopt the such form of prior art, no longer describes in detail herein.Improvements of the present utility model are: have an axial groove (5) on the outer peripheral face of that end parts that (in conjunction with referring to figure (2)) screw rod (4) cooperates with nut (3), groove (5) circumferentially has certain width along screw rod, and only have on the inner surface of hold-down nut (3) one run through nut shaft to and can with the thread belt (31) of screw rod (4) engagement, rather than screw thread is all arranged on the complete cycle resemble the prior art, the circumferential width that this thread belt (31) covers nut (3) inner surface equates with the circumferential width of above-mentioned groove (5).In use, when need fast moving moving caliper (2), rotating screw bolt (4) makes the groove (5) on it just in time relative with screw thread on the hold-down nut (3), then screw rod and nut can break away from engagement, screw rod can freely slide front and back in nut, realizes the quick adjustment of span of jaw thereby the moving caliper that drive is attached thereto slides fast; When span of jaw reaches described workpiece size and when needing clamping work pieces, then only needs screw rod is rotated a not too big angle (approximately half cycle get final product), screw rod and nut then are engageable and realize clamping.

In like manner, in the structure of the present utility model, also can take nut fluting, screw rod to have the form of part screw thread, its effect is identical.

Certainly, more reliable for the operation in disengaging when engagement of making nut, screw rod, also can make the circumferential width of thread belt (3) be slightly less than the circumferential width of groove (5).

In addition, owing to only pass through the part screw-threaded engagement between screw rod and hold-down nut, when need clamp larger-size workpiece, for increasing the clamping force between jaw, and the utility model also can add following structure: fixed a locking nut (6) on the moving caliper (2) of screw rod (4) and moving caliper (2) junction, screw rod (4) is provided with screw thread to be engaged with and to stretch out in outside the moving caliper (2), and the thread rotary orientation between the locking nut pair is opposite with the screw thread q rotation direction of hold-down nut pair; When rotary screw (4) made it with hold-down nut (3) engagement, locking nut (6) will make the inside application of force of jaw and workpiece clamp be got tighter.

Claims

But 1, a kind of bench vice of quick adjustment span of jaw, it comprises fixed caliper (1) but moving caliper (2) that relative fixed caliper (1) slides, be fixed in that a hold-down nut (3) and an end in the fixed caliper can be meshed with hold-down nut, the other end is connected rotationally with moving caliper (2) and stretch out its screw rod parts such as (4) outward, it is characterized in that: on the described screw rod (4) with mate described hold-down nut (3) or run through described hold-down nut (3) inner surface and have an axial groove (5), described groove (5) is along certain width is circumferentially arranged; Correspondingly, run through on the outer surface of axial or described screw rod (4) of described hold-down nut (3) inner surface and only have a thread belt (31) that can be meshed with described screw rod (4) or hold-down nut, the circumferential width of described thread belt (31) is equal to or slightly less than the width of described groove (5).
2, bench vice as claimed in claim 1 is characterized in that: fix a locking nut (6) on the moving caliper (2) of the junction of described screw rod (4) and moving caliper (2), described screw rod has the screw thread that is meshed with it on (4); The thread rotary orientation of described locking nut pair is opposite with the thread rotary orientation of described hold-down nut pair.