CN2071560U

CN2071560U - Three jaws chuck jack catchs positioning and grinding device

Info

Publication number: CN2071560U
Application number: CN 90216839
Authority: CN
Inventors: 姚安平
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-07-24
Filing date: 1990-07-24
Publication date: 1991-02-20

Abstract

The utility model relates to a device of repairing and grinding three-jaw chuck jack catchs of a machine tool which comprises a locator and a sharpening head. The utility model is characterized in that the locator is a sleeve typed object which combines the positioning and the supporting as integration. The surface of the sleeve typed object is provided with three homogeneously distributed convex slot holes with short positioned inclined surfaces along the axial direction. The outer sides of the short positioned inclined surfaces are provided with cylindrical surfaces which play a rigid action of supporting and enhancing. The utility model has the advantages of high grinding precision, high speed, convenience and simpleness, safe operation, simple manufacture and low cost.

Description

Three jaws chuck jack catchs positioning and grinding device

The utility model is a kind of location arrangement for grinding that is used for grinding machine tool scroll chuck claw, particularly is installed in the device of reconditioning claw on the lathe as annex.

Scroll chuck is the very high a kind of anchor clamps of the general required precision of engine lathe, its precision directly has influence on the quality and the production efficiency of workpiece to be machined, its precision will be lost after new chuck used a period of time, want to recover its precision, change card dish more, change claw because new chuck jaw and old dog plate are not the first wifves, rigging error is big, its precision is lower than new chuck, more the waste of change card dish is too big, in order to address this problem, people have proposed the scheme of many reconditioning claws, wherein there is a kind of scheme more satisfactory, as: Chinese patent 88202273.1 these correctors of chuck corrector are mainly by three special accessory claws (1), support ring (3) is formed, during use three accessory claws (1) being enclosed within respectively on three claws of chuck fixes accessory claw and claw with screwing screw (2), clamping support ring (3) with accessory claw makes claw be in folder state alive, the mill bar that emery wheel is housed is fixed on when making the lathe high speed rotating on the square tool post comes the reconditioning claw with emery wheel by moving back and forth saddle, but because accessory claw is screwed on claw, after chuck rotates certain hour, because the loosening easily hidden danger that produces of vibration Screw, and after being checked, the reconditioning position three accessory claws must be fixed again, operate cumbersome, the not enough easy deformation of support ring rigidity does not reach the pressure of clamping work pieces, the clamping effect is bad, claw does not reach direct folder duty alive and influences the reconditioning precision yet simultaneously, in addition, whole corrector part is many, be difficult for keeping, the complex structure of accessory claw, it is also high to manufacture cost.

The purpose of this utility model is exactly that provide at the deficiency that exists in the above-mentioned technology a kind of manufactures simply, and cost is low, and is safe and convenient to use, reconditioning precision height, fireballing solution.

The utility model is achieved in that

The utility model is made up of locator and bistrique, locator is one will locate the step shell-like thing that is integrated with support, on this shell-like thing, have the surface that three convex slotted eyes are evenly distributed in cover vertically, wherein, there is inclined-plane, short location little oblong aperture both sides vertically, its internal orifice width is greater than the width of the claw clamping face thickness less than claw, and big oblong aperture contact with claw, and the outside, inclined-plane, short location is the face of cylinder of playing the effect of enhancing rigidity of support of overstriking.

The utility model has the advantages that:

1. use this device reconditioning claw to make claw and chuck body keep relative tram, eliminated the gap of spiral button and other sliding surface, having guaranteed that claw is under the correct duty repairs, finishing effect is good, the precision height, the chuck jaw clamping check run-out error after the reconditioning is better than the precision of dispatching from the factory of new chuck.

2. the positioning supports work that can disposablely finish claw simple to operate, but safe and reliablely need not dismantle just reconditioning of chuck, can use after the reconditioning, reconditioning speed is fast, the efficient height.

3. manufacture simply, cost is little, and number of spare parts is few, is easy to keeping.

4. but utilize the not only interior clamping circular arc of reconditioning claw of this device, but also can repair two outer platform cambered surfaces of claw and two outer you faces.

Description of drawings is as follows:

Fig. 1 is the arrangement for grinding scheme of installation;

Fig. 2 is installed in side view on the chuck for locator;

Fig. 3 is the locator front view;

Fig. 4 is the locator vertical view;

Fig. 5 is a locator A-A position cut-away view;

Fig. 6 is a locator B-B position cut-away view.

Wherein: (1) is inclined-plane, short location; (2) be the inclined-plane of 110 ° of symmetries of claw; (3) be locator; (4) be bistrique; (5) be the mill bar; (6) be convex slotted eye on the locator; (7) be the face of cylinder of playing the rigidity of support effect of overstriking on the locator.

Below in conjunction with drawings and Examples the utility model is further described:

The utility model is made up of locator (3) and the bistrique (4) that is installed on mill bar (5), locator (3) is one will locate the step shell-like thing that is integrated with support, be uniform-distribution with three convex slotted eyes (6) thereon vertically, the upper end of slotted eye is little oblong aperture, in it vertically the both sides, position inclined-plane (1), short location is arranged, location and support that it matches and finish claw with 110 ° of symmetrical inclined-planes (2) of claw, the slotted eye lower end is that big oblong aperture does not contact it with claw, the outside, inclined-plane, short location is the face of cylinder (7) of an overstriking, can strengthen supporting the rigidity of claw, such locator integral rigidity is strong, good clamping effect, use this locator can once finish location and support works, easy and simple to handle, save time, because its integral rigidity is not yielding by force, and claw and its directly clamp and make chuck body and claw maintenance carrying out in normal operation reconditioning, so dressing accuracy is very high, the precision of dispatching from the factory that surpasses new chuck, chuck processing work quality height after the reconditioning, but use this device need not dismantle just reconditioning of chuck, chuck can come into operation after the reconditioning, high efficiency, and it manufactures simply, and cost is little, easily keeping, so be quite desirable a kind of machine tool accessories,, national lathe will avoid sizable waste to save extensive fund to country if all being furnished with this annex.During use, locator is contained on the chuck, screwing chuck clamps locator, make chuck in running order, then with the bistrique (4) of being with emery wheel in the mill bar (5) that is contained on the square tool post, by longitudinal maneuver or manually move back and forth saddle the interior clamping face of claw and other position are carried out reconditioning, generally only need about 15 minutes, if can be when the reconditioning surplus is big with carrying out reconditioning again behind the lathe tool elder generation bore hole.This device also can be split into locator four grooves and be used for the reconditioning chuck.

Claims

1, a kind of scroll chuck claw is located arrangement for grinding, form by locator and bistrique, it is characterized in that locator is one and will locatees the step shell-like thing that is integrated with support, on this shell-like thing, have the surface that three convex slotted eyes are evenly distributed in cover vertically, wherein, there is inclined-plane, short location little oblong aperture both sides vertically, and big oblong aperture does not contact with claw, and the outside, inclined-plane, short location is the face of cylinder that strengthens the rigidity of support effect of plaing of overstriking.

2, device according to claim 1, it is characterized in that matching with claw has the little oblong aperture internal orifice width on inclined-plane, short location greater than the width of claw clamping face, less than the thickness of claw.