CN2178574Y

CN2178574Y - Double-turret multi-station lathe

Info

Publication number: CN2178574Y
Application number: CN 93223570
Authority: CN
Inventors: 刘继林
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-09-03
Filing date: 1993-09-03
Publication date: 1994-10-05
Anticipated expiration: 2003-09-03

Abstract

The utility model belongs to metal cutting machine, especially a lean on two multistation capstan head tool rests cooperation to use to carry out metal cutting process's lathe comprises lathe bed 1, headstock 2, quadruplex position capstan head tool rest 3, little carriage apron 4, preceding carriage apron 5, six station capstan head tool rests 6, back carriage apron 7, carriage apron case 8. The lathe can process the parts of discs, sleeves, rings, short shafts and stepped shafts with complicated shapes in batch, can cut for many times under the condition of one-time clamping, and has high processing precision and production efficiency and simple and convenient operation.

Description

Double-turn-tower multi-work-place lathe

The utility model is a Metal Cutting Machine Tool, particularly relates to a kind of lathe that disposes two multistation turrets.

At present, in the metal cutting production process, people select different lathes for use often at the requirement of different processing parts.For example: when needing little and short axle class of processing and cover parts, must select " single shaft turret lathe " for use.When needing the part of processing multidiameter class, must select " single spindle turret lathe " for use.When needing processing dish class and cover, ring parts, must select " multicut lather for use." common ground of aforementioned three kinds of lathes is that two or more knife rests are arranged; on each knife rest a kind of cutter can only be installed; thereby their independent uses can only process a certain class part, can not be by the processing of the intact simultaneously nested family of a kind of lathe, lopps, dish class, multidiameter class and little and short axial workpiece.In metal cutting is produced, usually can run into that to need machining shape complexity, class shape to relate to more, the part that required precision is high is again processed this class part, often needs just can finish through several machined into.Owing to use lathe instead, not only can make troubles, and can bring error because of multiple clamping to workman's operation, the part higher to requirement on machining accuracy just is difficult to guarantee required precision.

The purpose of this utility model provides a kind of pair of capstan head multistation lathe, and it not only can be processed at various dissimilar parts, and can repeatedly cut under the situation of a clamping.

The purpose of this utility model is achieved in that main spindle box 2 usefulness screws and alignment pin are fixed on the lathe bed 1, four station turrets 3 are installed on the little slide carriage 4, little slide carriage 4 is led to hold by dovetail groove with preceding slide carriage 5 and is realized being slidingly connected, preceding slide carriage 5 is realized being slidingly connected by guide rail with lathe bed 1, six station turrets 6 are installed on the slide carriage 7 of back, and back slide carriage 7 is realized being slidingly connected by guide rail with lathe bed 1.Former and later two slide carriages are separately fixed on the slip crate 8.

Main shaft in the main spindle box 2 is parallel to the guide rail of lathe bed 1 and does gyration in horizontal plane, four station turrets 3 rotate in horizontal plane, realize the transposition campaign of each station, four station turrets 3 are connected with the slide rail of preceding slide carriage 5 by little slide carriage 4 can realize that four station turrets 3 travel longitudinally perpendicular to lathe bed 1, and four station turrets 3 are connected with slide rail on the lathe bed 1 by preceding slide carriage 5 can realize that four station turrets 3 do transverse movement along lathe bed 1, the lengthwise movement of little slide carriage 4 realizes that by guide rail and screw pair the transverse movement of preceding slide carriage 5 realizes by guide rail and rack-and-pinion transmission; Six station turrets 6 can be done the multi-station turning motion in horizontal plane, six station turrets 6 are connected realization by back slide carriage 7 and do transverse movement along lathe bed 1 with the slide rail of lathe bed 1, the transverse movement of back slide carriage 7 also is that the transmission by guide rail and rack-and-pinion realizes.Add man-hour in metal cutting,, reach the purpose of under the situation of a clamping, repeatedly cutting by being used of four station turrets 3 and six station turrets 6.

In Fig. 2, have the groove of mounting cutter on four sides of square tool post body 18, one or one group of lathe tool can be installed, the location of square tool post body 18 is made up of three parts.

1, in the location of horizontal level

The location, position of square tool post body 18 all directions in horizontal plane, be to guarantee by the accurate matched in clearance that is interference fitted in the interior positioning sleeve 14 on the square tool post 18 and be interference fitted between the outside fix cover 15 on the carriage saddle 10, interior positioning sleeve 14 overlaps 15 precision pair with outside fix, produce relative rotation and endwisely slip after square tool post body 18 and carriage saddle 10 are assembled, for satisfying this requirement, interior positioning sleeve 14 overlaps 15 fit dimensions with outside fix and takes the fit dimension processing back utilization group selective assembly of DH4/K4 to realize.Therefore the horizontal level of square tool post body 18 location can obtain very high positioning accuracy.

2, rotate location just

The realization of location just is to cooperate with four locating holes on square tool post body 18 bottom faces by first locating pin 11 to finish, and its objective is to the fine positioning of end face gear ring to prepare.

3, the end face gear ring rotates fine positioning

The rotation fine positioning of square tool post body 18 is to realize by last fine positioning end face gear ring 13 that is fixedly mounted on square tool post body 18 bottoms and the multiple tooth engagement that is fixedly mounted on the following fine positioning end face gear ring 12 on the square tool post seat 10.Adopt multiple tooth participation location, repetitive positioning accuracy is high.Because in use be equivalent to lower ring gear in the mutual grinding that keeps, thus use more for a long time, the engagement of upper and lower end face gear ring on the contrary better, thereby its repetitive positioning accuracy is better, the persistence cutter better.

The operating process of four station turrets 3:

Be rotated counterclockwise (seeing from the top down) clamping lever 19, because trapezoidal thread vertical shaft 16 connects for trapezoidal thread with trapezoidal nut 9, wherein trapezoidal nut 9 is fixed on the carriage saddle 10, this moment, main shaft 16 rotations were risen, lift square tool post body 18 by bearing 17, throw off fully until last fine positioning end face gear ring 13 and the engagement on the following fine positioning end face gear ring 12, thereby the action that square tool post body 18 is unclamped and lifts in realization, square tool post body 18 makes the locating hole of pilot pin 11 disengaging square tool post bodies 18 lower surfaces just, rotation square tool post body 18, making just, locating pin falls into its locating hole realization location just again, this moment is (seeing from the top down) rotation clamping lever 19 clockwise, just can realize the accurate resetting and the locking action of square tool post body 18.

Square tool post body 18 is major parts of four station turrets 3, the technical characterictic that square tool post body 18 has also is the technical characterictic that four station turrets 3 are had, so can be considered the groove that has mounting cutter on four sides of four station turrets 3, one or one group of lathe tool can be installed.

In Fig. 3, six station tool-post structures 20 are positive hexagon structure, the dish that connects of various cutters (as instruments such as brill, expansion, hinge, boring, cars) can be installed on six sides, in each side one or one group of cutter can be installed, the positioning principle of six station turrets 6 is identical with positioning principle, the operating process of aforementioned four station turrets with operating process.

Six station tool-post structures 20 are major parts of six station turrets 6, the technical characterictic that six station tool-post structures 20 have also is the technical characterictic that six station turrets 6 are had, be positive hexagon structure so can be considered six station turrets 6, the dish that connects of various cutters can be installed on six sides, one or one group of cutter can be installed in each side.

Adopt such scheme, dish class that can the machining shape complexity, the batch process of cover parts also adapt to the batch process of complicated axle class (comprising major axis and minor axis part) simultaneously; On six station turrets 6, install toply, can realize adding section chief's conical surface.Therefore, this machine tooling adapts to precision and production efficiency height wide, processing parts.

The drawing of accompanying drawing is described as follows:

Fig. 1 is a shape assumption diagram of the present utility model;

Fig. 2 is the structure chart of four station turrets 3 among Fig. 1;

Fig. 3 is the structure diagram of six station turrets 6 among Fig. 1;

Fig. 4 is an embodiment of the present utility model;

Fig. 5 be the utility model before processing parts, the clamping situation of four station turrets 3 and six station turrets 6.

In Fig. 4, the picture left above is a processing parts, and right part figure is respectively the procedure of processing of left figure part.

In Fig. 5, at first the processing according to Fig. 4 part needs, required cutter is installed on two knife rests, adjust four station turrets 3 and six station turrets 6 then respectively until the processing dimension requirement of satisfying this part, wherein on four station turrets 3, on 1 station, install one respectively facing tool, installed one on 2 stations cutter groove cutter, two facing tools have been installed on 3 stations, installed one on 4 stations falling simultaneously the shaped profile turning cutter of end face and grooving; On six station turrets 6, each one of drill bit, cylindrical and chamfering tool has been installed respectively on the I station by various accessories, cutter relieving action after wherein the accessory of clamping billmpse tool can be realized cutting, installed two billmpse tool on the II station, installed on the III station two billmpse tool and chamfering tool, installed one reamer on the IV station, installed one on the V station the finish turning billmpse tool, and the action of the cutter relieving after can realizing cutting, installed one on the VI station the cutter of necking.

In Fig. 4, the work step that adds that I, II, III, IV, V, VI figure are respectively processing parts gathers figure.

Fig. 4-I operation be utilize that I station on the six station turrets 6 is holed, turning and chamfering, carry out face work and grooving with 1 station on the four

station turrets

3 and 2 stations respectively again.

Fig. 4-II operation is the rough turn step of II station that utilizes on the six station turrets 6, uses two end faces of 3 stations while car on the four station turrets then.

Fig. 4-III operation is to utilize III station ride rank and the 4 station face work on routine angle and the four station turrets 3 on the six station turrets 6 and cut poor simultaneously.

Fig. 4-IV operation is to utilize the IV station on the six station turrets 6 to finish ream the hole.

Fig. 4-V operation is the V station finish turning cylindrical that utilizes on the six station turrets 6.

Fig. 4-VI operation is to utilize the VI station on the six station turrets to carry out necking.

But by poly-batch machining Fig. 4 part of operating of above-mentioned technology step.

Claims

1, a kind of pair of capstan head multistation lathe is made up of lathe bed, main spindle box, slide carriage, slip crate, front rest and back tool rest, it is characterized in that front rest is four station turrets (3), and back tool rest is six station turrets (6).

2, according to claim 1 pair of capstan head multistation lathe is characterized in that having on four sides of four station turrets (3) groove of mounting cutter, and one or one group of lathe tool can be installed.

3, according to claim 1 pair of capstan head multistation lathe is characterized in that six station turrets (6) are positive hexagon structure, and the dish that connects of various cutters can be installed on six sides, in each side one or one group of cutter can be installed.