CN2148621Y

CN2148621Y - Lathe chuck

Info

Publication number: CN2148621Y
Application number: CN 93201790
Authority: CN
Inventors: 孙生强
Original assignee: Individual
Current assignee: Sun Shengqiang
Priority date: 1993-02-05
Filing date: 1993-02-05
Publication date: 1993-12-08
Anticipated expiration: 2003-02-05

Abstract

The utility model relates to a turning chuck which is the improved design for bringing convenience for processing. The back side of the chuck has a reticle of 360 DEG and comprises a movable indicating pointer, both ends of which are peaked and the middle of which is bended and a fixing seat of the indicating pointer. The fixing seat of the indicating pointer is fixed on a lathe head, and the movable indicating pointer is pressed on the horizontal plane of the fixing seat of the indicating pointer through a screw. The indicating pointer point at the bended surface of the movable indicating pointer is opposite to the reticle of the chuck. Workpieces in lathes and a drive gear of a screw rod are matched with the reticle of 360 DEG of the chuck, which not only can equally divide the number of multiple threads quickly and exactly, but also can equally divide or scribe the top circles and the end faces of the workpieces; the reticle and jack catchs strings can be used for tool setting.

Description

Lathe chuck

The utility model relates to a kind of turning chuck, relates to a kind of chuck that has the fast actuating device feature or rather.

At present, advanced Digit Control Machine Tool uses at home, but many units are still making and using engine lathe.With engine lathe processing multiple thread the time, can adopt several traditional parted hair methods, as amesdial separately, gauge block separately, three, four paws separately, upper slide rest divides first-class.When the parted hair method of selection, guarantee machining accuracy and easy and simple to handle often opposition can not unify, have the situation of attending to one thing and lose sight of another, this external cylindrical, when end face is done five equilibrium, line or turner tool setting to workpiece, traditional method is to calculate line by pincers worker or by turner, operation inconvenience.

The purpose of this utility model is to improve the traditional lathe chuck structure, makes screw thread separately and the turner tool setting to eliminate with engine lathe, excircle of workpiece, end face etc. the inconvenience in the division line processing, raising working (machining) efficiency when guaranteeing machining accuracy.

Engine lathe chuck of the present utility model is characterized in that the back at chuck, and 360 ° of graduation marks are arranged, and also comprises pointing to 360 ° of graduation marks of chuck and being installed in movable pointer on the geared head.

Utilize 360 ° of grooves behind this movable pointer and the chuck, under the situation that guarantees machining accuracy, can carry out parted hair, five equilibrium and the line of workpiece easily.

Describe technology of the present utility model and application thereof in detail below in conjunction with the embodiment accompanying drawing, embodiment is according to the design of C620-1 type lathe, and other model lathes can be according to same principle design chuck scale position and annex thereof.

Accompanying drawing 1. scale chuck structure schematic diagrames

Master, the vertical view of movable pointer 3 among accompanying drawing 2. Fig. 1

Master, the vertical view of pointer holder among accompanying drawing 3. Fig. 1

Accompanying drawing 4.C620-1 type lathe gear box structure schematic diagram

Referring to accompanying

drawing

1,1 is the geared head of engine lathe, and 2 is screw, and 3 is movable pointer, and 4 is the pointer holder, and 5 is bolt, and 6 is lathe chuck, and 7 is claw.

There are 360 ° of grooves 61 at the back side of lathe chuck 6, carves with the method for circumference in equal parts, and every lattice are 1 degree, and every degree can be marked a numeral.

The screw hole 41 that movable pointer 3 is installed is arranged on the horizontal plane of pointer holder, and movable pointer gently is pressed on the pointer holder by screw 2, and available finger is stirred pointer 3 and moved.Bolt hole 42 is arranged on the vertical plane of pointer holder, by bolt 5 the pointer holder is fixed on the geared head 1, movable pointer 3 points to 360 ° of grooves 61 of chuck 6.

Referring to accompanying drawing 2, band bending in the middle of movable pointer 3 is pointed at both ends, pointer tip of level aligns with groove on pointer holder 4 planes.Screw hole 31 is arranged on the movable pointer, movable pointer gently is pressed on the pointer holder by the screw hole on screw and the pointer holder.The pointer tip on movable pointer 3 bending inclined-planes is facing to 360 ° of grooves of chuck.

Referring to accompanying drawing 3, pointer holder 4 has screw hole 41 on its horizontal plane, be used to install movable pointer, and screw 42 is arranged on its vertical plane, is used for fixing pointer holder itself, on the pointer holder position of center line groove 43 is arranged.

Referring to accompanying drawing 4, be example with the gear structure of C620-1 type lathe, the travelling gear that utilizes workpiece and leading screw in the lathe and 360 ° of grooves that cooperate chuck are described, carry out multiple thread operational applications separately.Behind the good article one helix of car, stop and handle to be got to neutral position forward chuck the second groove place of multiple thread five equilibrium to, the handle car second helix that closes, in utilizations method again the 3rd in car reach more helixes.

For example, during the car double thread, reversing handle is got to neutral position, can directly disconnect the gear drive of the Z=38 between geared head and change gear box, right-hand member throw-over handle is got to neutral position, disconnects the transmission of 20/80 or 50/50 on IV and the V axle simultaneously, and chuck is rotated 180 °, to set back car second threaded line again with upper handle.

For example, during the screw thread of car 2,5,10 statures, get to the gear drive that neutral position disconnects 50/50 on VII and the VI axle with increasing the pitch handle, right-hand member throw-over handle is got to the gear drive that neutral position disconnects 20/80 or 50/50 on IV and the V axle, chuck is turned to the scale of the five equilibrium of wanting, the handle that closes again, car second helix.When chuck rotates timesharing such as 2,5,10,80 and 50 the number of teeth can both be divided exactly by 2,5,10, so gear just in time closes.

When for example car increases pitch, right-hand member throw-over handle is pushed neutral position, directly disconnect the gear drive of 20/80 or 50/50 on IV and the V axle, can 2,4,5,8,10 multiple-threaded numbers of five equilibrium.

The method of operating of utilizing scale chuck of the present utility model to carry out the five equilibrium of workpiece, line is: divide bowlder on the cylindrical of workpiece to be machined or end face, right-hand member throw-over handle is got to neutral position, 360 ° of grooves of chuck rotate several five equilibriums, promptly available point of a knife line.As process the pitch-row of ring flange, polygonal back gauge etc.When on workpiece to be machined, drawing the chord length line, only need calculate earlier this chord length line right central angle, on chuck, produce required angle again, can mark the distance of chord length, as the keyway of processing axle sleeve, the chord length of small semicircle etc.

The application process of utilizing scale chuck of the present utility model to carry out the turner tool setting is: earlier with the point of a knife centring, with point of a knife at the standardized diatom in the centre of a claw, again a pointer tip of movable pointer is aimed at the graduation mark on the pointer holder, observe the sensing of another pointer tip of movable pointer on 360 ° of graduation marks of chuck, and remember its position, next time is when adorning cutter, only need movable pointer is remained on the same position, the graduation mark of a pawl must be in the center in the claw so, dress only needs during cutter point of a knife is aimed at the claw line, and point of a knife is comfortable center also.

Because the parted hair of screw thread, the line five equilibrium of workpiece all are by means of 360 ° of grooves on the chuck, and carry out five equilibrium, thereby can guarantee precision according to the number of gears in the geared head.As the turning helical pitch is the double thread of 8mm, and the second helix is just in time cut place in the middle of 8mm, and pitch is 4mm.

The utility model carves 360 ° of grooves on common chuck, 2,4,5,8,10 multiple thread head numbers of five equilibrium replace traditional index dial, time saving and energy saving province material fast.

Therefore chuck is divided into 360 °, equals workpiece is divided into 360 five equilibriums, can utilize graduation mark, and in the first-class division line of cylindrical, end face of workpiece, for the processing and the maintenance of various parts provides convenience, the turner tool setting is quick, and is easier than traditional dress skill in using a kitchen knife in cookery.

Claims

1, a kind of engine lathe chuck is characterized in that:

(1) there are 360 ° of graduation marks the chuck back;

(2) also comprise and point to 360 ° of graduation marks of chuck and be installed in movable pointer on the geared head.

2, engine lathe chuck according to claim 1 is characterized in that also comprising the pointer holder that is fixedly mounted on the geared head, and described movable pointer is pressed on the pointer holder by screw.

3, engine lathe chuck according to claim 1 and 2 is characterized in that the middle band bending pointed at both ends of described movable pointer.

4, engine lathe chuck according to claim 2 is characterized in that on the described pointer holder groove being arranged.