CN2139872Y

CN2139872Y - Table quick grip vice

Info

Publication number: CN2139872Y
Application number: CN 92242424
Authority: CN
Inventors: 卢国骥
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-12-03
Filing date: 1992-12-03
Publication date: 1993-08-11
Anticipated expiration: 2002-12-03

Abstract

The utility model relates to a table quick grip vice which comprises a movable vice tooth, a fixed vice tooth, a handle, a screw rod and a nut. The utility model is characterized in that the nut is combined by dividing pair bodies, and is pivoted and arranged in the fixed vice tooth by a bias pin in a bias mode. The outside of the dividing pair bodies is respectively provided with a compression spring. The cross-sectional shape of the screw thread buckle of the matching of the nut and the screw rod is a trapezoid shape whose bottom is wide and top is narrow. The side edge of the trapezoid is that the front direction of gripping is a vertical line, and the rear direction of gripping is a slope line. The outside of the nut is provided with an oval groove and a cam which are used for dividing the nut. The vice is conveniently operated, and the complete cycle of the screw thread buckle of the screw rod and the nut is stressed.

Description

Table quick grip vice

The utility model relates to a kind of stock vice, particularly a kind of fast folder stock vice.

Existing stock vice, for reaching the purpose of quick clamping, leading screw and screw are realized by eccentric coupling apparatus.When needs are realized quick clamping and when promoting the sliding clamp tooth, operated eccentric coupling apparatus the leading screw and the engagement of screw are separated, and the upside internal thread of operating upper portion external screw thread that coupling apparatus makes leading screw and screw when doing last the clamping again meshes.Though this vice can be realized the engagement of leading screw and screw or separate the purpose that reaches fast folder, but inconvenient operation, have only the external screw thread of part leading screw to be meshed when particularly clamping with the internal thread of part screw, rather than the external screw thread of leading screw on full week is meshed with the internal thread of screw on full week, its force-bearing situation is obviously not good, and it is also undesirable to clamp effect.

Therefore, the purpose of this utility model is to propose a kind of desk-top fast folder vice, the engagement that this vice can not only be realized leading screw and screw easily with separate, and be that external screw thread and screw the internal thread full week on of leading screw on full week is meshed in clamping process, therefore clamp stressed even, and can clamp self-locking, reach good clamping effect.

The utility model proposes a kind of desk-top fast folder vice, this vice has the adjustable clamp tooth, fixing pincers tooth, handle and leading screw and screw, screw is contained in the fixing pincers tooth, leading screw passes the sliding clamp tooth and can be meshed with screw, it is characterized in that, screw is two split is put together relatively, split had the hold down gag that makes its involutory return, side to split has arm respectively integratedly, by the offset pins that is fixed on the fixing pincers tooth arm is articulated in respectively on the fixing pincers tooth, the center of this pin with to the distance that weaves female center line radius greater than leading screw; Has the half elliptic groove that involutes the major axis oval-shaped groove consistent mutually respectively on the lateral surface to the faying face place of split with the screw axis; One oval cam that is journaled into the rotation operated on the fixing pincers tooth is arranged in oval-shaped groove, and the control stick of this cam is installed on the fixing pincers tooth and its handle extends to fixing pincers tooth outside; The section configuration of the screw buckle of screw is narrow trapezoidal in bottom width top and is vertical curve and the rear of clamping direction is an oblique line in the place ahead of clamping direction that the section configuration of the section configuration of threads of lead screw button and screw screw buckle adapts.

The hold down gag of described involutory return is for to have a stage clip respectively to the involutory radially both sides of zoarium, and an end of this stage clip joins with fixing pincers tooth, the other end with split is joined.

The hold down gag of described involutory return also can be for respect to having an extension spring on the side to split upside of ellipse connected in star, and the two ends of this extension spring join to split with two respectively.

For light-duty vice, only get final product with above-mentioned screw one to split, promptly get final product with half screw.And the hold down gag of return is an end and the split side is fixed, the other end and the fixing stage clip of fixing pincers tooth.

This stock vice is when when axially the promotion leading screw comes fast moving sliding clamp tooth, because the inclined plane of screw buckle engages, to weaving the engagement of female disengaging automatically and leading screw, and during the last clamping article of turning handle, to piece together nut under the effect of stage clip automatically amalgamation make screw and the threaded engagement of leading screw on full week.And, the elastic restoring force of clamped object is passed on the screw buckle flat face that leading screw acts on screw by the sliding clamp tooth, owing to the biasing of offset pins makes weaving female amalgamation tighter, reach the engagement of complete all screw buckles simultaneously, separately reach and loosen the purpose of taking off clamped thing fast piecing together nut as long as rotating cam can make.So this vice is easy to use, clamp firmly, structure is also uncomplicated.

Below in conjunction with accompanying drawing the utility model embodiment is described further.

Fig. 1 is the overall schematic of the desk-top fast folder vice that the utility model proposes;

Fig. 2 is that cam drives the schematic diagram that screw separates split, and cam-operated bar passes fixing pincers tooth and installs;

Fig. 3 is that cam drives screw to the schematic diagram that split separates, and has represented the sectional schematic diagram of the screw buckle of screw and leading screw, can see from figure, when the inclined plane of leading screw screw buckle when clamping direction advances fast combines.

Ask for an interview Fig. 1, the desk-top fast folder vice that the utility model proposes has sliding clamp tooth 2, and 1, two of handle 3 and fixing pincers tooth slightly rotation are located in the fixing corresponding cavity that clamps in the tooth split 5,5 ' the involutory screw that is combined into.Leading screw 4 passes sliding clamp tooth 2 and can mesh with screw, and handle 3 is equipped with in the termination of leading screw 4.With split 5,5 ' is formed with arm 8 integratedly respectively, 8 ', arm 8, the offset pins 7,7 ' on 8 ' will be journaled on the fixing pincers tooth 1 split 8,8 ' respectively, make rotation between separable and involutory is done in

split

5,5 '.To dividing 5, the relative place, both sides of 5 ' involutory surface has a stage clip 6,6 ' respectively, and this stage clip 6,6 ' one end are fixed on the pincers tooth 1, and the other end joins respectively with to split 5, the 5 ' outside.To split 5, has the half elliptic groove respectively on the lateral surface at 5 ' faying face place, when to split 5, this half elliptic groove is combined into an oval-shaped groove 10 during 5 ' amalgamation, its major axis is consistent with the screw axis, operably pivot is equipped with a cam 9 in fixing pincers tooth 1, and this cam 9 is the symmetric double convex, and this cam can be seen Fig. 2 with control stick 13() thus rotate and handle the cam rotation.The section of the screw buckle of screw and the leading screw 4 that matches with it is narrow trapezoidal in bottom width top, and the side of the trapezoidal cross-section of the screw buckle of screw is a vertical curve 12 in the place ahead of clamping direction, and the rear of clamping direction is a parallax 11, as shown in Figure 3, arrow A is for promoting leading screw 4, the clamping direction of mobile sliding clamp tooth 2, arrow B are the action direction of clamped elastic restoring force when passing to leading screw 4.

In off working state, because the effect of stage clip, to the full week engagement of screw thread of split 5,5 ' amalgamation leading screw 4 and screw.

When needs clamp fast, axially promote the end with handle 3 of leading screw 4, the inclined plane 11 ' of the screw buckle of leading screw 4 contacts with the inclined plane 11 of screw screw buckle at this moment, act on the radial component of the axial force on the inclined plane 11, overcome the elastic force of stage clip, force split 5,5 ' around offset pins 7,7 ' swing, screw and leading screw 4 break away from engagement, and sliding clamp tooth 2 can free fast moving.

When leading screw 4 terminations do not apply axial promotion, at stage clip 6, under 6 ' the effect to split 5,5 ' amalgamation, screw and leading screw 4 full week engagements, 4 of rotational lead screws are transferred slowly and are clamped, after object is clamped, clamped elastic restoring force forces leading screw 4 to tend to move to unclamping direction, and this just makes the vertical plane 12 of screw buckle, and 12 ' is in contact with one another, the vertical plane 12 of the screw buckle of nut is subjected to responsive to axial force, this axial force is to offset pins 7, and 7 ' moment makes tighter to split 5,5 ' amalgamation.

In the time will unclamping clamped,, handle cam 10 again as long as loosen slightly, make its rotation and with its two convex surface contact oval-shaped groove short-axis directions, make separately split 5,5 ', leading screw 4 separates with the engagement of screw, and sliding clamp tooth 4 can move freely towards unclamping direction with leading screw 4.

Second embodiment of the present utility model is same as the previously described embodiments, does not just have stage clip among this embodiment, and at screw to split 5, has an extension spring 13 on one side of 5 ' relative semiellipse groove, the two ends of this extension spring 13 join respectively with to split 5,5 ', ask for an interview Fig. 4.

Claims

1, a kind of desk-top fast folder vice, this vice has the adjustable clamp tooth, fixing pincers tooth, handle and leading screw and screw, screw is contained in the fixing pincers tooth, leading screw passes the sliding clamp tooth and can be meshed with screw, it is characterized in that, screw is two split is put together relatively, split had the hold down gag that makes its involutory return, side to split has arm respectively integratedly, by the offset pins that is fixed on the fixing pincers tooth arm is articulated in respectively on the fixing pincers tooth, the center of this pin with to the distance that weaves female center line radius greater than leading screw; Has the half elliptic groove that involutes the major axis oval-shaped groove consistent mutually respectively on the lateral surface to the faying face place of split with the screw axis; The one half elliptic cam that is journaled into the rotation operated on the fixing pincers tooth is arranged in oval-shaped groove; The section configuration of the screw buckle of screw is that narrow trapezoidal and this trapezoidal the place ahead at clamping direction, bottom width top is a vertical curve and the rear of clamping direction is an oblique line, the section configuration of the section configuration of threads of lead screw button and screw screw buckle adapts, the control stick of described cam is installed on the fixing pincers tooth, and its handle is positioned at outside the fixing pincers tooth.

2, vice according to claim 1 is characterized in that, the hold down gag of described involutory return is for to have a stage clip respectively to the involutory radially both sides of split, and this stage clip one end joins with fixing pincers tooth, the other end with split is joined.

3, vice according to claim 1 is characterized in that, the hold down gag of described involutory return is for respect to having an extension spring on the side to the semiellipse groove in the split, and the two ends of this extension spring join to split with two respectively.